Optimal Protocols for Studying & Learning
Sintesi
TLDRIn this episode of the Huberman Lab Podcast, Andrew Huberman explores effective learning and studying techniques as supported by scientific research. Huberman points out that much of what people believe about learning techniques may be incorrect based on data from neuroscience and psychology. The podcast highlights how testing oneself shortly after being exposed to new material significantly boosts memory retention by offsetting the natural forgetting process, compared to traditional methods like re-reading. He also emphasizes the critical role of sleep, specifically REM sleep, in consolidating learning, and explains how learning techniques can be universally applied beyond student life, including professionals and everyday learning seekers. Additionally, Huberman addresses the contribution of emotional engagement in retaining information, suggesting that material laid in with emotion is recalled more effectively. Mindfulness meditation is suggested as a tool to improve focus and cognitive retention. Finally, the podcast examines the physiological mechanisms of neuroplasticity, underscoring the importance of synaptic connectivity adjustments over the simplistic addition of new neurons for learning.
Punti di forza
- 🎙️ The podcast aims to provide practical, science-based tools for effective learning.
- 🔬 Many traditional beliefs about learning may be inaccurate according to neuroscience research.
- 🧠 Testing oneself soon after learning new information enhances memory retention better than re-reading.
- 😴 Adequate sleep, especially REM sleep, is vital for memory consolidation.
- 🧘 Mindfulness meditation can improve focus and cognitive functions.
- 📚 Preferred learning styles (visual, auditory) are less significant than effective study techniques.
- 🎓 Emphasizing emotion in learning materials can enhance information retention.
- 📝 Open-ended questions in self-tests are recommended for better learning outcomes.
- 🔄 Interleaving subjects or topics can enhance cognitive processing and memory.
- 🚫 Limiting distractions and setting regular study times improves learning efficiency.
Linea temporale
- 00:00:00 - 00:05:00
Dr. Andrew Huberman introduces the topic of effective study methods, emphasizing that optimal strategies are counterintuitive and backed by extensive research combining education, psychology, and neuroscience fields.
- 00:05:00 - 00:10:00
Dr. Huberman emphasizes the importance of sleep for optimal learning and discusses his sponsors, highlighting how tools like temperature-regulating mattresses and online therapy can improve physical and mental health.
- 00:10:00 - 00:15:00
Mindfulness meditation and exercise are cited as crucial for focus and mental health. Huberman explains how the waking up app aids meditation consistency, contributing to improved cognitive function and stress management.
- 00:15:00 - 00:20:00
The discussion moves to learning strategies, debunking the myth of fixed learning styles. Instead, successful learning is about preventing the natural process of forgetting through strategies like memory rehearsal and self-assessment.
- 00:20:00 - 00:25:00
Dr. Huberman explains how neuroplasticity involves strengthening or weakening neuron connections and rarely neurogenesis. These processes allow learning and memory retention, vital for both cognitive and motor skills.
- 00:25:00 - 00:30:00
Effective learning comes from challenging study practices. Huberman highlights that techniques such as self-testing, although uncomfortable, significantly enhance memory retention compared to repetitive reading.
- 00:30:00 - 00:35:00
Huberman details an experiment where students performed better using self-testing. This illustrates that testing helps cement knowledge more than just reviewing the material multiple times.
- 00:35:00 - 00:40:00
Emphasizing the robust impact of self-testing, Huberman discusses further research showing that testing immediately after learning something boosts retention by reducing natural forgetting processes.
- 00:40:00 - 00:45:00
Open-ended and short-answer self-tests are recommended to enhance learning over multiple-choice formats. Dr. Huberman underlines their effectiveness in creating deeper understanding and stronger memory retention.
- 00:45:00 - 00:50:00
He discusses how frequent testing improves retention better than study alone, with early tests after learning being particularly effective, as they strongly counteract forgetting.
- 00:50:00 - 00:55:00
Testing oneself right after learning new material leads to better retention over long periods. Huberman stresses that this method significantly reduces the forgetting typical of re-reading strategies.
- 00:55:00 - 01:00:00
Dr. Huberman explains gap effects, where short pauses during learning allow the brain to consolidate memories better. These effects bolster retention and understanding.
- 01:00:00 - 01:05:00
Incorporating emotional engagement and storytelling into study sessions enhances memory because they trigger neurochemical responses that fix memories more solidly.
- 01:05:00 - 01:10:00
He explores interleaving, injecting unrelated topics amidst focused study sessions, which aids memory by enabling the brain to associate new knowledge with a broader context.
- 01:10:00 - 01:15:00
Highlighting the significance of a proactive mindset, Huberman asserts that deploying active engagement strategies and anticipation of tests can enhance learning potential.
- 01:15:00 - 01:20:00
Dr. Huberman summarizes the main themes, emphasizing the advantage of self-testing in learning. He links this approach to neuroplasticity principles, underscoring testing as a tool to strengthen knowledge retention.
- 01:20:00 - 01:25:00
Self-testing bolstered by immediate application and review interspersed with reflection sessions allows for refined mastery of material, countering natural memory decay.
- 01:25:00 - 01:30:00
Huberman draws parallels between memory improvement strategies and practical applications, offering guidelines applicable beyond traditional educational settings.
- 01:30:00 - 01:41:39
Finally, Dr. Huberman concludes the podcast by inviting listeners to apply these scientifically-backed strategies to foster lifelong learning and profound knowledge retention.
Mappa mentale
Domande frequenti
Who is the host of the Huberman Lab Podcast?
The host is Andrew Huberman, a professor at Stanford School of Medicine.
What is the main focus of this episode of Huberman Lab Podcast?
The episode focuses on effective science-based strategies for studying and learning.
Are preferred learning styles like 'visual' or 'auditory' important?
The research suggests that the medium (visual, auditory) is less important than techniques to offset forgetting.
What important component is emphasized for effective learning?
Testing oneself shortly after learning new material is emphasized as a crucial component to offset forgetting.
What role does sleep play in learning?
Sleep, especially rapid eye movement sleep, is crucial for the consolidation of learning and memory.
How does emotion impact learning according to the podcast?
Emotion enhances memory retention, making emotionally charged materials easier to remember.
What is a useful tool mentioned to enhance focus during studying?
Mindfulness meditation is recommended as a tool to enhance focus and memory recall.
What common learning belief is debunked in this podcast?
The belief that more exposure to material (like re-reading) is the best way to learn is debunked; instead, testing is critical.
What is one surprising fact about learning from this podcast?
Self-testing increases retention more than re-reading material multiple times.
What is a neuroplasticity mechanism mentioned in the podcast?
Neuroplasticity involves strengthening or weakening synaptic connections, not primarily the addition of new neurons.
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What are Internal Controls
- 00:00:00welcome to the huberman Lab podcast
- 00:00:02where we discuss science and
- 00:00:03science-based tools for everyday
- 00:00:05[Music]
- 00:00:08life I'm Andrew huberman and I'm a
- 00:00:10professor of neurobiology and
- 00:00:12Opthalmology at Stanford school of
- 00:00:14medicine today we are discussing how to
- 00:00:17study and learn that is what the
- 00:00:19scientific data say is the best way to
- 00:00:22study in order to remember information
- 00:00:24and to be able to use that information
- 00:00:26effectively in different areas of your
- 00:00:28life so for those of you that are still
- 00:00:30in school this could be any stage of
- 00:00:32school today's discussion will be very
- 00:00:34useful for you however even if you are
- 00:00:37not formally enrolled in any kind of
- 00:00:38school at the moment today's discussion
- 00:00:41will also be extremely effective for you
- 00:00:43to be able to study and learn better
- 00:00:46information from say the internet or
- 00:00:49podcasts or any area of your life where
- 00:00:51you are seeking to learn and use new
- 00:00:54knowledge now one of the most important
- 00:00:57things that you're going to learn today
- 00:00:58is that learning that is the best
- 00:01:00learning practices are not intuitive so
- 00:01:04before we dive in keep in mind that
- 00:01:07whatever you believe about how best to
- 00:01:10learn for you is probably Incorrect and
- 00:01:13I confess this was humbling for me as
- 00:01:16well when I started to dive into this
- 00:01:17literature because as somebody who was a
- 00:01:20student for many years and in some sense
- 00:01:23still considers himself a student of
- 00:01:25science and health information because
- 00:01:26of this podcast and certainly somebody
- 00:01:28who still teaches University courses
- 00:01:30both to medical students and graduate
- 00:01:32students and to undergraduate students
- 00:01:34at Stanford I thought I understood the
- 00:01:37whole teaching and learning process but
- 00:01:39I too learned that it is anything but
- 00:01:41intuitive in fact most of what we
- 00:01:44believe about the best ways to study are
- 00:01:47absolutely false fortunately today you
- 00:01:49will learn the best ways to study turns
- 00:01:52out there's a rich literature on this
- 00:01:54dating back well over a hundred years
- 00:01:56and the data are absolutely fascinating
- 00:01:58and Incredibly actionable it's
- 00:02:00incredibly interesting how the fields of
- 00:02:01Education the fields of psychology and
- 00:02:04the fields of Neuroscience have now come
- 00:02:06together to define the optimal
- 00:02:08strategies to study and learn before we
- 00:02:11begin I'd like to emphasize that this
- 00:02:13podcast is separate from my teaching
- 00:02:15research roles at Stanford it is however
- 00:02:17part of my desire and effort to bring
- 00:02:19zero cost to Consumer information about
- 00:02:21science and science related tools to the
- 00:02:23general public in keeping with that
- 00:02:25theme I'd like to thank the sponsors of
- 00:02:27today's podcast our first sponsor is
- 00:02:29eight sleep eight sleep makes Smart
- 00:02:31mattress covers with cooling Heating and
- 00:02:33sleep tracking capacity I've spoken many
- 00:02:36times before on this podcast about the
- 00:02:38critical need to get sleep both enough
- 00:02:40sleep and enough quality sleep now one
- 00:02:42of the key things to getting a great
- 00:02:43night's sleep is that your body
- 00:02:44temperature actually has to drop by
- 00:02:46about 1 to 3° in order for you to fall
- 00:02:48and stay deeply asleep and to wake up
- 00:02:51feeling refreshed your body temperature
- 00:02:53actually has to increase by about 1 to
- 00:02:553° one of the best ways to ensure all of
- 00:02:57that happens is to control the
- 00:02:59temperature of your sleeping environment
- 00:03:01and with eight sleep it's very easy to
- 00:03:02do that you program the temperature that
- 00:03:04you want at the beginning middle and the
- 00:03:06end of the night and that's the
- 00:03:08temperature that you're going to sleep
- 00:03:09at and it will track your sleep it tells
- 00:03:11you how much slow wave sleep you're
- 00:03:12getting how much rapid eye movement
- 00:03:13sleep you're getting which is critical
- 00:03:15and all of that also helps you dial in
- 00:03:17the exact parameters you need in order
- 00:03:19to get the best possible night sleep for
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- 00:04:01huberman today's episode is also brought
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- 00:04:11I've been doing weekly therapy for well
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- 00:05:10huberman today's episode is also brought
- 00:05:12To Us by waking up waking up is a
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- 00:05:28there are thousands of quality reviewed
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- 00:05:32mindfulness meditation can be for
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- 00:05:36anxiety improving our mood and much more
- 00:05:38in recent years I started using the
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- 00:05:42I find it to be a terrific resource for
- 00:05:44allowing me to really be consistent with
- 00:05:46my meditation practice many people start
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- 00:05:54what I and so many other people love
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- 00:06:12and about the effectiveness of
- 00:06:13meditation and you can always fit
- 00:06:16meditation into your schedule even if
- 00:06:17you only have two or three minutes per
- 00:06:19day in which to meditate I also really
- 00:06:21like doing Yoga Nidra or what is
- 00:06:23sometimes called non-sleep deep rest for
- 00:06:25about 10 or 20 minutes because it is a
- 00:06:27great way to restore mental and physical
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- 00:06:44trial okay let's talk about how best to
- 00:06:47study and learn and of course people
- 00:06:49have different learning styles Some
- 00:06:51people prefer to learn by reading some
- 00:06:54people prefer to study in a group Some
- 00:06:55people prefer to highlight some people
- 00:06:58call themselves auditory Learners other
- 00:07:00people consider themselves visual
- 00:07:02learners but guess what when one looks
- 00:07:04at the research on preferred learning
- 00:07:07styles pretty much all of that melts
- 00:07:09away it turns out that the best way to
- 00:07:11study and learn is defined not by the
- 00:07:15medium in which that material arrives
- 00:07:17whether not it's auditory or visual or
- 00:07:19combined whether or not you review
- 00:07:21slides or a textbook or you watch small
- 00:07:24videos it turns out that the best way to
- 00:07:27study and learn is to access components
- 00:07:30of your memory systems that offset
- 00:07:34forgetting this is a theme I'm going to
- 00:07:36return to over and over again throughout
- 00:07:38today's episode rather than think about
- 00:07:40studying to learn and retain information
- 00:07:44I want you to think about studying to
- 00:07:46offset the natural process of forgetting
- 00:07:49that everybody experiences when they are
- 00:07:51exposed to new material of any kind
- 00:07:53cognitive or motor learning musical
- 00:07:56learning math Etc okay so keep this in
- 00:07:59mind throughout today's episode the best
- 00:08:01way to learn is to think about
- 00:08:03offsetting the natural forgetting of new
- 00:08:06information you're trying to inoculate
- 00:08:09against forgetting that is the way to
- 00:08:11remember things that is the way to gain
- 00:08:13Mastery over them and I'm going to teach
- 00:08:16you how to best do that using the data
- 00:08:20gleaned from the peer- reviewed
- 00:08:21literature now before I do that I want
- 00:08:23to talk about what learning is I promise
- 00:08:25to make this fairly brief because I've
- 00:08:27covered learning and so-called neuro
- 00:08:29plasticity before on this podcast for
- 00:08:32those of you that have heard those
- 00:08:33discussions this will serve as a
- 00:08:34refresher for those of you that have not
- 00:08:36heard those discussions this will be
- 00:08:38thorough enough for you to be able to
- 00:08:39digest all the rest of today's
- 00:08:42information neuroplasticity is this
- 00:08:44incredible feature of your nervous
- 00:08:46system which of course includes your
- 00:08:47brain and your spinal cord which is the
- 00:08:50ability for your nervous system to
- 00:08:52change in response to experience so any
- 00:08:55form of learning involves
- 00:08:57neuroplasticity neuroplasticity we
- 00:09:00sometimes hear as neural plasticity two
- 00:09:03words or
- 00:09:04neuroplasticity those are the same thing
- 00:09:06essentially the change that underlies
- 00:09:08neuroplasticity at the level of cells
- 00:09:11which we call neurons or nerve cells
- 00:09:13generally involves three different
- 00:09:15mechanisms one is the strengthening of
- 00:09:18certain connections what we call
- 00:09:19synaptic connections synapses are the
- 00:09:21location between neurons where they
- 00:09:24communicate with one another it's
- 00:09:25actually a gap between the neurons it is
- 00:09:27technically called the synaptic left
- 00:09:29it's a gap and within that Gap chemicals
- 00:09:32are passed across that Gap that allow
- 00:09:34one neuron to activate other neurons or
- 00:09:36many neurons to activate many other
- 00:09:38neurons or to inhibit the activity of
- 00:09:41other neurons okay so one form of
- 00:09:44neuroplasticity is the strengthening of
- 00:09:47connections between neurons another form
- 00:09:49of neuroplasticity is the weakening of
- 00:09:52connections between neurons and yet a
- 00:09:54third form of plasticity which is often
- 00:09:56discussed in the media but is very rare
- 00:10:00actually in the nervous system
- 00:10:02especially the adult nervous system of
- 00:10:04humans is neurogenesis or the addition
- 00:10:07of new neurons let's just get this out
- 00:10:09of the way up front because the addition
- 00:10:11of new neurons again grabs so much
- 00:10:14attention in media articles but it's
- 00:10:16responsible for a near trivial amount of
- 00:10:19the sort of neuroplasticity that is
- 00:10:21important for today's discussion or
- 00:10:22frankly for most all discussions it is
- 00:10:24true you have a specialized set of
- 00:10:26neurons in your olda factory bulb that
- 00:10:28are responsible for smell as well as a
- 00:10:30specialized set of neurons in the
- 00:10:31so-called dentate gyrus of your
- 00:10:33hippocampus an area of the brain that's
- 00:10:34important for memory in which new
- 00:10:38neurons appear to be added throughout
- 00:10:40the lifespan but this is not the major
- 00:10:42mechanism by which learning and memory
- 00:10:44occurs in humans rather the major
- 00:10:46mechanism by which learning and memory
- 00:10:48occurs in humans is the strengthening of
- 00:10:50existing connections and the weakening
- 00:10:52of existing connections or the formation
- 00:10:56of new connections between already EX
- 00:10:59existing neurons not new neurons okay
- 00:11:03now the removal or weakening of
- 00:11:05connections between neurons being an
- 00:11:07important component of neuroplasticity
- 00:11:09is very important for sake of today's
- 00:11:11discussion I want to emphasize that when
- 00:11:13we hear about weakening of connections
- 00:11:15we often think well that means
- 00:11:16forgetting or that means the brain is
- 00:11:19getting less good however so much of the
- 00:11:21neuroplasticity that underlies for
- 00:11:23instance the acquisition of a new motor
- 00:11:26skill is actually the reflection of
- 00:11:29removal of connections so we don't want
- 00:11:31to project any kind of value onto a
- 00:11:34discussion about adding new connections
- 00:11:36removing new connections let's just
- 00:11:38leave it at this level mechanistically
- 00:11:41when you hear about neuroplasticity just
- 00:11:44know that it could be the consequence of
- 00:11:47strengthening of connections as well as
- 00:11:50weakening of connections and that
- 00:11:52neither strengthening of Connections in
- 00:11:54the nervous system nor weakening of
- 00:11:56connections can map directly to the
- 00:11:58formation or remove removal of say
- 00:12:00memories or information just know that
- 00:12:02these are the important mechanisms in
- 00:12:04fact if you look at a baby that is let's
- 00:12:07say I don't know N9 months old their
- 00:12:09motor skills are not terrific typically
- 00:12:12compared to the motor skills that that
- 00:12:13child will have when they are six or
- 00:12:15seven years old just look at a kid
- 00:12:17trying to eat spaghetti or something of
- 00:12:19that sort or eat anything when they're a
- 00:12:21small baby versus a toddler versus a
- 00:12:24young child versus an adolescent or Te
- 00:12:27You know despite the um poor table
- 00:12:29manners of some adolescence and teens
- 00:12:30and some adults for that matter they are
- 00:12:33still exhibiting far more precise motor
- 00:12:36movements than they did as an infant of
- 00:12:39course and believe it or not the
- 00:12:42Improvement in motor coordination that
- 00:12:44one observes in humans and other species
- 00:12:46for that matter from birth until the
- 00:12:49adolescence and teen years and adult
- 00:12:51years is largely the reflection of the
- 00:12:53removal that's right the removal of
- 00:12:57neural connections as opposed to the
- 00:12:58form
- 00:12:59of neural connections however the neural
- 00:13:01connections that remain become much more
- 00:13:03robust they become much more reliable
- 00:13:06okay so that's the mechanistic backdrop
- 00:13:07for everything that we're going to talk
- 00:13:09about today which is how to study and
- 00:13:11learn and as I mentioned earlier in my
- 00:13:15introduction most of learning and
- 00:13:17remembering new material is about
- 00:13:19offsetting the forgetting process that
- 00:13:21naturally occurs any time we hear new
- 00:13:24information so in keeping with what will
- 00:13:27ultimately reveal itself to be the
- 00:13:29dominant theme of today's discussion
- 00:13:32right now and for reasons that will
- 00:13:33become clear later I want you to take a
- 00:13:36brief quiz now the moment people hear
- 00:13:39quiz or test typically it spikes their
- 00:13:42adrenaline they start feeling stressed
- 00:13:43but don't worry you're going to keep
- 00:13:44your answers to yourself and you're
- 00:13:47doing this for a very specific purpose
- 00:13:49here's my question this is a two
- 00:13:52question
- 00:13:54quiz how many different ways
- 00:13:56mechanistically speaking does does
- 00:13:59neuroplasticity occur is it one
- 00:14:02mechanism two mechanisms or three
- 00:14:04mechanisms or is it four or
- 00:14:08five okay can you name in your head two
- 00:14:12of the three major changes that the
- 00:14:15nervous system can undergo which are
- 00:14:17reflective of
- 00:14:20neuroplasticity okay so the answer to
- 00:14:22question was is that there are three
- 00:14:24different modes of neuroplasticity as
- 00:14:26you recall or as you may not have been
- 00:14:28able to recall and by the way if you
- 00:14:30were not able to recall the three
- 00:14:32different modes of neuroplasticity or
- 00:14:34mechanisms underlying neuroplasticity
- 00:14:36that is fine as you'll soon realize
- 00:14:39recognizing the errors in your
- 00:14:41information retention is another
- 00:14:43critical and very useful way to retain
- 00:14:46more information even if you got the
- 00:14:48answer wrong or you didn't know in fact
- 00:14:51especially if you got the answer wrong
- 00:14:53or you didn't know so the three ways are
- 00:14:57the strengthening of neural connection
- 00:14:59second the weakening of neural
- 00:15:00connections and third through
- 00:15:02neurogenesis the addition of new neurons
- 00:15:05why did I provide this quiz why did I
- 00:15:07test you well as you'll soon learn if
- 00:15:09you look across the total body of
- 00:15:11research on how best to study and learn
- 00:15:14it involves doing exactly what we just
- 00:15:16did which is to periodically stop and
- 00:15:19test yourself on the material that you
- 00:15:21learned testing is not just a way of
- 00:15:24evaluating what knowledge you've
- 00:15:26Acquired and which knowledge you have
- 00:15:28not managed to acquire it also turns out
- 00:15:31to be the best tool for offsetting
- 00:15:33forgetting of any kind and I'll go into
- 00:15:35the data that supports that statement in
- 00:15:37a moment so yes today we're going to get
- 00:15:39a little bit meta in the sense that
- 00:15:41we're going to be learning about optimal
- 00:15:43studying strategies and applying those
- 00:15:45as we go through this podcast and no
- 00:15:48there will not be a test at the end
- 00:15:50although you're welcome to give yourself
- 00:15:51a test at the end I'm going to provide
- 00:15:53you with an excellent zeroc cost very
- 00:15:55fast tool that you can use to evaluate
- 00:15:57your knowledge and your ability to study
- 00:15:59and learn better as a consequence of
- 00:16:01having listened to this podcast versus
- 00:16:03had you not listened to this podcast so
- 00:16:05if ever there was an incentive to listen
- 00:16:07to the end there it is okay let's talk
- 00:16:09about some of the other practical
- 00:16:11aspects of studying and learning I know
- 00:16:13a lot of you out there who want to learn
- 00:16:15and want to come up with the best
- 00:16:16studying strategies are trying to think
- 00:16:18about how to structure your day or how
- 00:16:20much to study or when to study let's get
- 00:16:23the most important things out of the way
- 00:16:25first neuroplasticity and learning that
- 00:16:28is convert converting your studying
- 00:16:29efforts into retention of knowledge is a
- 00:16:32two-step process you probably heard
- 00:16:35about active engagement that's just a
- 00:16:37fancy set of words for focus for really
- 00:16:40attending to the information that you're
- 00:16:42trying to learn and it is very important
- 00:16:45anytime you're trying to learn new
- 00:16:46information so focus goes with alertness
- 00:16:50you can't be focused if you're not alert
- 00:16:52this is
- 00:16:53prerequisite so you need to be alert and
- 00:16:56you need to be focused in order to pay
- 00:16:59attention to the information that you're
- 00:17:00trying to learn in fact it is the
- 00:17:02process of being focused and
- 00:17:04attending that cues your nervous system
- 00:17:08that something is important that
- 00:17:09something's different about whatever
- 00:17:10sensory experience you happen to be
- 00:17:12having when you're focused and attending
- 00:17:14whether or not it's the information
- 00:17:15you're hearing or that you're looking at
- 00:17:17or
- 00:17:18both that cue at the level of
- 00:17:21neurochemicals in your brain and body
- 00:17:24signals to the neurons hey you're going
- 00:17:26to have to change you're going to have
- 00:17:28to alter your connections either make
- 00:17:29them stronger or weaker or a combination
- 00:17:32of those things in order to make sure
- 00:17:34that your nervous system can retain and
- 00:17:37use the information at a future time so
- 00:17:39that's step one and of course as a part
- 00:17:41of step one most people when they hear
- 00:17:44about optimal studying strategies they
- 00:17:46want to know you know what should they
- 00:17:47do what should they take in order to
- 00:17:49learn better well here's what everyone
- 00:17:51should take in order to learn better
- 00:17:52which is a great night's sleep the night
- 00:17:54before limiting your external stress
- 00:17:57although some stresses good because it
- 00:17:59cues up your alertness it actually
- 00:18:01allows you to remember certain things
- 00:18:02better we'll talk about this a little
- 00:18:03bit later no one can remove all stress
- 00:18:06from their life but we know one thing
- 00:18:08for sure your ability to be alert and
- 00:18:11focused is going to be greater if you
- 00:18:12slept well the night before okay so
- 00:18:15sleep is without question the best neut
- 00:18:17Tropic right the word neut Tropic means
- 00:18:19smart drug I don't really like that term
- 00:18:21because learning involves all sorts of
- 00:18:23things it's not just about being smart
- 00:18:24it's about being able to attend it's
- 00:18:26about sometimes being creative flexible
- 00:18:28with ideas and information here's the
- 00:18:31point you're going to need to get your
- 00:18:32sleep right in order to be able to study
- 00:18:34and learn at your absolute best and I've
- 00:18:37done many episodes of The hman Lab
- 00:18:38podcast about sleep we have a newsletter
- 00:18:40about sleep that details in a short PDF
- 00:18:43format the various things you can do to
- 00:18:45get your sleep optimized so to speak you
- 00:18:48can find all that hubman lab.com by
- 00:18:50putting sleep into the search function
- 00:18:52we don't have time to discuss that
- 00:18:53material now but get your sleep right so
- 00:18:57that you can be alert and focused when
- 00:18:59it comes time to learn now the process
- 00:19:02of being alert and focused on particular
- 00:19:04material that you want to learn can be
- 00:19:07enhanced by just having a silent script
- 00:19:10within your head silent meaning you're
- 00:19:12not saying it out loud where when you
- 00:19:14sit down to learn you're looking at a
- 00:19:16book or you're listening to a lecture
- 00:19:18perhaps a podcast like this you're
- 00:19:20thinking okay I need to learn this I
- 00:19:21need to learn this you can voluntarily
- 00:19:24ramp up your level of focus and
- 00:19:26alertness by telling yourself that
- 00:19:27information is important
- 00:19:29don't be a passive participant in
- 00:19:31learning this is the basis of active
- 00:19:34learning by expecting the information to
- 00:19:35be so interesting that it pulls your
- 00:19:37level of attention and focus out of you
- 00:19:39rather learn to engage your attention
- 00:19:41and focus voluntarily
- 00:19:44volitionally okay when we hear about
- 00:19:46ADHD attention deficit hyperactivity
- 00:19:49disorder we know that people with ADHD
- 00:19:52can attend very rapidly they can really
- 00:19:55pay close attention for long periods of
- 00:19:57time if they like a given topic or a
- 00:20:00given experience or activity they have
- 00:20:03serious challenges however engaging
- 00:20:05their attention and alertness if they
- 00:20:07are not excited about an activity or
- 00:20:11information and so it is the Hallmark of
- 00:20:13all good Learners to be able to
- 00:20:17voluntarily force yourself to attend and
- 00:20:20to focus and when I say force yourself
- 00:20:23that means a constant bringing back of
- 00:20:24your mind's attention to whatever it is
- 00:20:27you're trying to learn it is meant to
- 00:20:29feel difficult I say meant to feel
- 00:20:32difficult because that strain that you
- 00:20:34feel that encouraging or in some cases
- 00:20:36forcing yourself to attend sometimes
- 00:20:38even putting on a hoodie and hat you
- 00:20:40know literally putting blinders so that
- 00:20:41you can only attend to the material
- 00:20:43right in front of you that straining
- 00:20:45that you feel reflects in part the
- 00:20:49release of neuromodulators like
- 00:20:50epinephrine adrenaline in the brain and
- 00:20:52body which serve to cue the neural
- 00:20:54circuits that they need to change at a
- 00:20:56later time okay so the strength that you
- 00:20:58feel in trying to learn the strain that
- 00:21:00you feel in forcing yourself to learn
- 00:21:02how to focus that is good that's a
- 00:21:04c-tier nervous system that it's going to
- 00:21:06need to change that neuroplasticity
- 00:21:09needs to take place think about it if
- 00:21:12you didn't feel that strain and you were
- 00:21:13able to perform whatever it is that you
- 00:21:15were doing or remember whatever
- 00:21:17information it is that you're being
- 00:21:18exposed to seamlessly well then your
- 00:21:21nervous system wouldn't have to change
- 00:21:23because it already has the capabilities
- 00:21:25within the neural circuits so that
- 00:21:27strain that you feel that agitation is
- 00:21:30great that's a cue that you are learning
- 00:21:34or that you set the learning process in
- 00:21:36motion now it's also the case that some
- 00:21:39people don't have great levels of focus
- 00:21:41and attention and there are of course
- 00:21:44pharmacologic tools I would encourage
- 00:21:46anyone that has clinically diagnosed
- 00:21:47ADHD to talk to their doctor about
- 00:21:49whether or not they should use
- 00:21:50prescription meds and or other methods
- 00:21:53great sleep is always going to be an
- 00:21:55important substrate for attention and
- 00:21:56focus for anybody but especially for
- 00:21:59people with
- 00:22:01ADHD I highly encourage anyone that's
- 00:22:04interested in enhancing their levels of
- 00:22:06focus and attention to also consider the
- 00:22:09non-pharmacologic approaches so this is
- 00:22:11irrespective of whether or not you need
- 00:22:12pharmacologic approaches yes being well
- 00:22:15hydrated yes the appropriate amount of
- 00:22:17caffeine for you that allows you to be
- 00:22:18alert but not you know shaking and
- 00:22:21agitated can be very
- 00:22:22useful however the scientific data also
- 00:22:25support the fact that doing a brief say
- 00:22:29five to 10 minute mindfulness meditation
- 00:22:32each day these are the data from Wendy
- 00:22:33Suzuki's laboratory at New York
- 00:22:35University showing that people who do a
- 00:22:3910-minute meditation per day where they
- 00:22:41simply sit or lie down close their eyes
- 00:22:43focus on their breathing their attention
- 00:22:45invariably drifts they bring their
- 00:22:47attention back to their breathing people
- 00:22:49who do that on a regular basis improve
- 00:22:52their level of focus they improve their
- 00:22:54memory and recall ability and of course
- 00:22:56there are a bunch of other positive
- 00:22:57effects of that simple
- 00:22:59zeroc cost tool of mindfulness
- 00:23:01meditation so if you're interested in
- 00:23:04improving your levels of focus and
- 00:23:05attention for sake of learning I highly
- 00:23:08encourage you to explore the Oho
- 00:23:12valuable tool of mindfulness meditation
- 00:23:15just five or 10 minutes per day done on
- 00:23:17a regular basis you miss a day no big
- 00:23:19deal just get right back to it the next
- 00:23:20day does it matter if you do it morning
- 00:23:23afternoon or night no some people find
- 00:23:26that doing it too late at night might
- 00:23:27disrupt their sleep
- 00:23:29but if you think about meditation of the
- 00:23:30sort that I just described as a
- 00:23:32perceptual exercise maybe you don't even
- 00:23:35call it meditation you're just teaching
- 00:23:36yourself to focus you could even do it
- 00:23:38with Eyes Open by focusing on a visual
- 00:23:40Target allowing yourself to Blink there
- 00:23:42are good data on this sort of approach
- 00:23:43as well and then just making sure that
- 00:23:46your visual attention and cognitive
- 00:23:48attention comes back to that visual
- 00:23:50Target over and over again it's a
- 00:23:52deliberate process of bringing your
- 00:23:53attention back to a particular
- 00:23:57location that is very valuable for
- 00:23:59improving your levels of focus in fact
- 00:24:01it is known to create significant
- 00:24:04improvements in your ability to focus
- 00:24:06which is critical for your ability to
- 00:24:07study and learn so I know that many
- 00:24:10people are interested in what to take
- 00:24:12what to do at the level of kind of um
- 00:24:14esoteric practices or things to buy
- 00:24:17there is stuff out there again I
- 00:24:19mentioned hydration caffeine great sleep
- 00:24:21and so on but the simple practice of
- 00:24:23mindfulness meditation or just what I
- 00:24:26describe as a focusing perceptual
- 00:24:27exercise of bringing your attention back
- 00:24:29to the same location over and over again
- 00:24:31deliberately will train you to train
- 00:24:33your nervous system to bring your
- 00:24:35attention back to whatever it is you're
- 00:24:37trying to learn now I've done other
- 00:24:39podcasts about how to focus about
- 00:24:41attention specifically and ADHD again
- 00:24:44you can find all of those at hubman
- 00:24:45lab.com simply put ADHD or Focus or
- 00:24:48tools for focus into the search function
- 00:24:50and it will take you to the exact
- 00:24:51timestamps in those episodes that are
- 00:24:54relevant right now however I want to
- 00:24:56talk about the second part of
- 00:24:57neuroplastic
- 00:24:59which is that the actual changes in the
- 00:25:02nervous system the strengthening and
- 00:25:03weakening predominantly of connections
- 00:25:06between neurons that underly learning do
- 00:25:08not occur during the focusing and
- 00:25:10learning or rather the exposure to the
- 00:25:12material but instead during deep sleep
- 00:25:16and sleep-like states and again I've
- 00:25:18done a lot of podcasts and talked a lot
- 00:25:20about tools for getting better sleep but
- 00:25:21I just want to remind everybody that the
- 00:25:23actual reordering of the connections the
- 00:25:25strengthening of connections between
- 00:25:26neurons that underly learning the
- 00:25:28weakening of those connections occurs
- 00:25:30during sleep in particular during rapid
- 00:25:32eye movement sleep which tends to
- 00:25:34predominate in the latter half of the
- 00:25:36night so make sure that you're getting
- 00:25:37enough sleep for you for some people
- 00:25:39it's 6 hours for some people it's eight
- 00:25:41hours and yes there is something called
- 00:25:42the first night effect the first night
- 00:25:44effect is the experimentally observed
- 00:25:48phenomenon whereby information that you
- 00:25:50learn on a given day is mostly
- 00:25:53Consolidated during the night's sleep
- 00:25:55that you have on that first night after
- 00:25:57the learning occurs does this mean that
- 00:25:59if you get a poor night's sleep on the
- 00:26:01first night after learning something
- 00:26:02that you are forever going to forget
- 00:26:05that information that it cannot be
- 00:26:07Consolidated into your neural circuits
- 00:26:09no however it's very clear that the
- 00:26:12first night after learning you want to
- 00:26:15get the best sleep possible so if you're
- 00:26:17learning BS you're studying is going
- 00:26:19late into the night and you're drinking
- 00:26:20a lot of caffeine be mindful that the
- 00:26:22sleep that you get after drinking that
- 00:26:24caffeine late into the day the all
- 00:26:25nighters that you're pulling those are
- 00:26:27not serving you're learning well so you
- 00:26:29need to structure your life as a student
- 00:26:32of any kind so that you can get focus
- 00:26:35and attention to what it is you want to
- 00:26:37learn and you can get sleep to the best
- 00:26:39of your ability and of course people who
- 00:26:41are raising young kids or who have
- 00:26:43stress in their lives for whatever
- 00:26:44reason perhaps won't be able to optimize
- 00:26:47their sleep on that first night or even
- 00:26:48subsequent nights but do your best to
- 00:26:50get your sleep right it's the single
- 00:26:52best thing you can do for your mental
- 00:26:54health for your physical health and for
- 00:26:55Learning and performance of any kind and
- 00:26:57it's really worth the effort
- 00:27:00Now with an understanding of the
- 00:27:03mechanisms the focus and
- 00:27:06alertness and the Sleep phase of
- 00:27:10neuroplasticity what are some other
- 00:27:12things that you can do to enhance
- 00:27:13whatever studying and learning you've
- 00:27:15obtained I already talked about a tool a
- 00:27:18behavioral tool for enhancing Focus what
- 00:27:19about a behavioral tool for enhancing
- 00:27:21plasticity if your sleep is great or
- 00:27:24especially if your sleep isn't great and
- 00:27:25there I highly recommend you explore
- 00:27:28non-sleep deep rest or nsdr there's a
- 00:27:30script for this in the show note
- 00:27:31captions nsdr sometimes referred to as
- 00:27:34Yoga Nidra although those things are
- 00:27:36similar but different is a 10 or 20
- 00:27:39minute practice that you can do to
- 00:27:41restore your mental and physical Vigor
- 00:27:43if you haven't slept enough so you could
- 00:27:44do it first thing in the morning when
- 00:27:45you wake up if you feel you haven't
- 00:27:47slept enough you can do it in the
- 00:27:48afternoon you can do it in the middle of
- 00:27:50the night if you're not able to sleep
- 00:27:52and offset some of the Sleep loss that
- 00:27:54you otherwise would have experienced
- 00:27:56nsdr is a very powerful tool in order to
- 00:28:00enhance
- 00:28:01neuroplasticity and I'll talk more about
- 00:28:03this in a future episode there's a lot
- 00:28:05of exciting data coming out about nsdr
- 00:28:07and yoga Nitra but if you're sleeping
- 00:28:10well and even if you aren't I highly
- 00:28:12encourage you to incorporate a 10 or 20
- 00:28:13minute nsdr into your schedule someplace
- 00:28:17again where you place it in your
- 00:28:18schedule isn't as important as the fact
- 00:28:20that you do it in order to enhance
- 00:28:23neuroplasticity that is the reordering
- 00:28:25of connections between neurons to serve
- 00:28:27the studying and learning that you're
- 00:28:28doing now let's talk about how the best
- 00:28:30students structure their days turns out
- 00:28:32there are great studies on this there's
- 00:28:35a really nice paper in fact that
- 00:28:40surveyed close to 700 students these
- 00:28:42were medical students approximately
- 00:28:45equal number of male and female students
- 00:28:48and analyze the most useful learning
- 00:28:50habits that is the learning habits
- 00:28:52associated with the most successful
- 00:28:54students now anytime you do a study like
- 00:28:56this where people take surveys there's
- 00:28:58always the issue of causality in fact we
- 00:29:01can pretty much set aside any possible
- 00:29:03causality for instance I'm about to tell
- 00:29:05you that the very best performing
- 00:29:06students tend to study for about three
- 00:29:08or four hours per day but you could
- 00:29:10easily say Well they're the best
- 00:29:12students because they study three or
- 00:29:14four hours per day they don't study
- 00:29:15three or four hours per day because
- 00:29:17they're the best students and you'd be
- 00:29:18exactly right okay we can get into all
- 00:29:20sorts of discussions about correlation
- 00:29:22versus causation about reverse causality
- 00:29:25and on and on however none of that is
- 00:29:27the point here the point here is to
- 00:29:29establish what are the habits that the
- 00:29:32most successful students seem to
- 00:29:34incorporate over and over again
- 00:29:35regardless of what classes they're
- 00:29:36taking regardless of where they are in
- 00:29:39their Arc of their learning trajectory
- 00:29:41and so what we know based on this study
- 00:29:43and I'll provide a link to it in the
- 00:29:44show note captions is that there are at
- 00:29:47least 10 study habits that the highly
- 00:29:49effective students use I'm going to
- 00:29:50focus on the top five or six just for
- 00:29:53sake of time because it turns out that
- 00:29:56most of the effect it appears
- 00:29:58of being a better student can be
- 00:30:00attributed to these top five or six
- 00:30:02habits first of all they set aside time
- 00:30:06to study they literally schedule time to
- 00:30:08study now this probably serves several
- 00:30:10roles the first one is that they are
- 00:30:12able to clear out other distractions and
- 00:30:14in fact that's the second thing that
- 00:30:16they do they are very effective or they
- 00:30:19make it a point of putting their phone
- 00:30:20away and off of isolating themselves
- 00:30:23that's right they're not studying with
- 00:30:25other people they study alone which is
- 00:30:27not to say that people who study with
- 00:30:29others cannot be effective in their
- 00:30:30studying but the best performing
- 00:30:32students seem to study alone they put
- 00:30:35their phone away they tell their friends
- 00:30:38and families that they are not going to
- 00:30:40be able to be reached during that time
- 00:30:43and yes they study for three or four
- 00:30:45hours per day but they break that up
- 00:30:47into a couple of different sessions
- 00:30:49typically two or three sessions so
- 00:30:51they're not doing a three or four hours
- 00:30:52studying about all in one
- 00:30:54shot so they're managing their time
- 00:30:58they're eliminating distractions and
- 00:30:59they're studying for a consistent amount
- 00:31:03of time at least 5 days per week okay
- 00:31:05presumably they're taking some weekends
- 00:31:07off although that wasn't made clear from
- 00:31:08this paper the other thing that they do
- 00:31:10and this is very important is that they
- 00:31:12make an effort to then teach their peers
- 00:31:14to teach other students in the class now
- 00:31:17some of you may be thinking and I'm
- 00:31:18thinking back to college here mostly
- 00:31:21that if you spend all this time learning
- 00:31:22the information and you are in a
- 00:31:24competitive scenario with the other
- 00:31:25students that teaching them the
- 00:31:27information is kind of kind of a freebie
- 00:31:28for them and it's harder for you meaning
- 00:31:30you're putting yourself at a competitive
- 00:31:32disadvantage or you're giving them an
- 00:31:33unfair Advantage for not having done the
- 00:31:36work now while this paper didn't do an
- 00:31:38analysis of whether or not these
- 00:31:39students that served as the Learners
- 00:31:41from the other students got an unfair
- 00:31:43Advantage it's very clear that students
- 00:31:47who make it a point to learn material in
- 00:31:48isolation then bring that material to
- 00:31:50other students in the same course and
- 00:31:52teach them perform exceedingly well in
- 00:31:55comparison to the other students so
- 00:31:57don't be afraid to be a teacher of your
- 00:31:58peers in order to test this is key to
- 00:32:02test and develop Mastery of the material
- 00:32:06now in my laboratory for years we used
- 00:32:09to have a saying which I simply picked
- 00:32:11up from the Laboratories I was trained
- 00:32:12in I didn't come up with a saying which
- 00:32:13was watch one do one teach one and that
- 00:32:16was referring to doing surgeries or
- 00:32:18suturing or doing an antibody reaction
- 00:32:21or a western blood or things that you do
- 00:32:22in
- 00:32:24Laboratories watch one do one teach one
- 00:32:27watch one do one teach one of course
- 00:32:28should be reserved to anything where no
- 00:32:30one's going to be put in danger by the
- 00:32:32watch one do one teach one procedure
- 00:32:34right some procedures especially in
- 00:32:35Laboratories can be dangerous given the
- 00:32:37materials you use Etc and of course
- 00:32:40today we're talking about learning and
- 00:32:41studying generally so provided it safe
- 00:32:44watch one do one teach one is an
- 00:32:46excellent means to learn that is to
- 00:32:49study new material to develop
- 00:32:51proficiency and even Mastery and over
- 00:32:53time perhaps even virtuosity we'll
- 00:32:56return to that later those distinctions
- 00:32:58so going back to this idea that the best
- 00:33:00students set aside time they designate
- 00:33:03time to study alone without distractions
- 00:33:06that is sure to help them anchor their
- 00:33:09focus and attention they know that
- 00:33:10they're going to need to use their focus
- 00:33:12and attention during that time and we
- 00:33:14know with absolute certainty that focus
- 00:33:17and attention are a limited but
- 00:33:20renewable resource in the human brain
- 00:33:22the longer you're awake the more is the
- 00:33:24buildup of a molecule called adenosine
- 00:33:26in your brain and body it makes you
- 00:33:27sleep sley makes it harder to focus when
- 00:33:29you sleep adenosine levels are pushed
- 00:33:31down again you're able to focus again
- 00:33:33you feel more alert you can think of
- 00:33:35adenosine as limiting your attentional
- 00:33:37budget which is not to say that some
- 00:33:38people don't study best in the afternoon
- 00:33:40or in the evening or even late at night
- 00:33:42right I recall times during University
- 00:33:44when I'd study between the hours of 10
- 00:33:46p.m. and 2: a.m. I don't do that any
- 00:33:48longer
- 00:33:49but scheduling time where you know
- 00:33:52you're going to need to be focused and
- 00:33:54attending is perhaps one of the most
- 00:33:57important things toward being able to
- 00:33:59focus and attend to the material now if
- 00:34:01you're taking courses you probably are
- 00:34:03going to be a slave to the timing of the
- 00:34:05courses you aren't going to be able to
- 00:34:06tell the instructor okay listen I want
- 00:34:08you to do this course at you know 3 p.m.
- 00:34:10because that's when you learn best or at
- 00:34:128: a.m. because that's when you happen
- 00:34:13to be able to attend best however to the
- 00:34:16extent that you have any control over
- 00:34:17the time in which you're going to study
- 00:34:19keeping that at a regular time or times
- 00:34:21perhaps one block early in the day one
- 00:34:23block later in the day perhaps two
- 00:34:25blocks early in the day and so on is
- 00:34:27going to be beneficial it turns out
- 00:34:29that's also supported by the research
- 00:34:30literature that the brain just like with
- 00:34:34its sleep wake cycles that entrain to a
- 00:34:37regular schedule that is your brain and
- 00:34:39body get used to being active and
- 00:34:41inactive at particular times based on
- 00:34:44your exposure to sunlight your exposure
- 00:34:46to activities your social rhythms Etc if
- 00:34:48you regularly meaning for the course of
- 00:34:50about three days make it a point to
- 00:34:53focus and study at particular times
- 00:34:55again pulling your attention back it's
- 00:34:57not an automatic process but pulling
- 00:34:58your attention back to a specific
- 00:35:01location perhaps on a page or that
- 00:35:02you're listening to in a lecture your
- 00:35:05body and brain will start to entrain to
- 00:35:07that Rhythm such that you will be able
- 00:35:10to focus and attend better simply by
- 00:35:13virtue of the regularity of the timing
- 00:35:15of the exposure to the material okay so
- 00:35:18you probably need about two or three
- 00:35:19days to break into a regular schedule of
- 00:35:22focusing and attending and studying at a
- 00:35:24given time or times allow yourself that
- 00:35:27transition period but then make it a
- 00:35:29point to schedule those times to study
- 00:35:32set aside your phone tell people you're
- 00:35:35going offline turn off the Wi-Fi if you
- 00:35:37need to or have to you may need it for
- 00:35:39your studying I don't know depends on
- 00:35:41what you're studying but limit
- 00:35:42distractions at all costs and learn to
- 00:35:45just focus on the material and this is a
- 00:35:48skill this is the most important thing
- 00:35:49to understand it's a skill to be able to
- 00:35:51focus and study and it's a skill that
- 00:35:53you can learn very quickly especially if
- 00:35:55you schedule it for regular times and
- 00:35:57you give yourself two or three days in
- 00:36:00which to adapt to those schedules and
- 00:36:01times and then try and stick to them as
- 00:36:03regularly as possible perhaps even on
- 00:36:05the weekends if you're approaching you
- 00:36:07know the end of the quarter or
- 00:36:08semester perhaps even on the weekend
- 00:36:12even if you're not in the quarter or
- 00:36:13semester keeping those regular times
- 00:36:15will entrain your nervous system to
- 00:36:17study and learn at its best at those
- 00:36:20particular times I'd like to take a
- 00:36:22quick break and acknowledge our sponsor
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- 00:36:43cover any gaps you may have in your diet
- 00:36:45and provide support for a demanding life
- 00:36:48for me even if I eat mostly Whole Foods
- 00:36:49and minimally processed foods which I do
- 00:36:51for most of my food intake it's very
- 00:36:53difficult for me to get enough fruits
- 00:36:55and vegetables vitamins and minerals
- 00:36:56micronutrients and adaptogens from food
- 00:36:59alone for that reason I've been taking
- 00:37:01ag1 daily since 2012 and often twice a
- 00:37:04day once in the morning or mid morning
- 00:37:06and again in the afternoon or evening
- 00:37:08when I do that it clearly bolsters my
- 00:37:09energy my immune system and my gut
- 00:37:12microbiome these are all critical to
- 00:37:14brain function mood physical performance
- 00:37:16and much more if you'd like to try ag1
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- 00:37:28again that's drink a1.com huberman to
- 00:37:32claim that special offer before I move
- 00:37:34into specific ways to study in order to
- 00:37:38maximally offset forgetting notice I
- 00:37:40didn't say in order to learn but rather
- 00:37:42to maximally offset forgetting AKA
- 00:37:45learning stably learning material
- 00:37:48there's one other point that I wanted to
- 00:37:49pass along from this uh really nice
- 00:37:51study on the study habits of highly
- 00:37:53effective medical students that I've
- 00:37:55been referring to and that is when one
- 00:37:58examined or these people were asked
- 00:38:01about their motivation for studying the
- 00:38:04best performing students had an
- 00:38:06interesting answer they had a very
- 00:38:09long-term understanding of how or belief
- 00:38:12rather about how their success in
- 00:38:15medical school would impact their family
- 00:38:19how it would impact their life Arc how
- 00:38:21it would change them and they weren't
- 00:38:23particular about the ways in which it
- 00:38:24would change them or their family in
- 00:38:26fact it was a rather broad abstract
- 00:38:29aspirational way of thinking about their
- 00:38:31study efforts so what I like so much
- 00:38:33about this paper is that you know in
- 00:38:36addition to having a fairly large sample
- 00:38:38size close to 700 students that were
- 00:38:40evaluated and yes it's purely uh you
- 00:38:43know self-report and this kind of thing
- 00:38:46nonetheless it Bridges the two extremes
- 00:38:48of studying and learning you know it
- 00:38:50gets right down into the nitty-gritty of
- 00:38:52how long they study when they study the
- 00:38:54things they do to limit distraction that
- 00:38:56we just discussed but it also gets to
- 00:38:59their underlying psychological
- 00:39:00motivations and the thing that they use
- 00:39:02in order to pull them forward through
- 00:39:04their study efforts perhaps especially
- 00:39:06when their desire is waning or their uh
- 00:39:10level of fatigue is increasing I don't
- 00:39:12know that I'm speculating here but this
- 00:39:14is this aspirational component of going
- 00:39:17to medical school which it turns out in
- 00:39:19the country in which the study was done
- 00:39:21um only very very select few of the very
- 00:39:24best students are able to achieve that
- 00:39:26they have to learn the in a different
- 00:39:28language altogether which is
- 00:39:30incredible I always Marvel at that you
- 00:39:32know I have friends that did their PHD
- 00:39:34thesis in Italy they're Italian by birth
- 00:39:37they now happen to run a laboratory in
- 00:39:39Italy and they had to do their PHD
- 00:39:41training and write papers and give their
- 00:39:43thesis dissertation and defense in
- 00:39:46English even though English was their
- 00:39:48second language so talk about a
- 00:39:50challenge and um that's just one example
- 00:39:52that I can think of there are many
- 00:39:54examples of
- 00:39:55that these students students that I'm
- 00:39:58referring to in this study are not
- 00:40:00necessarily constantly thinking about
- 00:40:03how their efforts will transform
- 00:40:05themselves and their families but they
- 00:40:07certainly were able to report what it
- 00:40:09was specifically that they are seeking
- 00:40:11what they're aspiring to besides just
- 00:40:13trying to do as well as they can getting
- 00:40:16into and through medical school so the
- 00:40:19high level aspirational stuff within you
- 00:40:21whatever that is for you it's going to
- 00:40:23be highly
- 00:40:24individual is certainly important and it
- 00:40:27offers a bookend to the nuts and bolts
- 00:40:30kind of stuff that you're going to do I
- 00:40:32would hope in order to best study and
- 00:40:34learn the specific material so the
- 00:40:36specific actions that you're going to
- 00:40:37take each day to learn specific bits of
- 00:40:39information that will pull you toward
- 00:40:41those important aspirations and now
- 00:40:43again if you love the material you're
- 00:40:45learning this aspirational component is
- 00:40:48probably not as important right I can
- 00:40:50recall during University and graduate
- 00:40:52school and so on thinking oh my goodness
- 00:40:55this is like the coolest thing I've ever
- 00:40:56heard probably say that about a million
- 00:40:58different topics like oh my goodness
- 00:40:59circadian rhythms seasonal rhythms
- 00:41:01melatonin neural circuits dopamine I was
- 00:41:03just a wash with excitement about what I
- 00:41:05was learning but of course sometimes I
- 00:41:07would take a course where the material
- 00:41:08was I don't know if it was more
- 00:41:10challenging or not but I had a harder
- 00:41:11time getting engaged by the material
- 00:41:14either by virtue of how it was being
- 00:41:15taught to me or the material itself so
- 00:41:18the ability to attach to some
- 00:41:19aspirational goal to pull you
- 00:41:21through can be very valuable you're not
- 00:41:24going to love every topic you have to
- 00:41:26learn however I will say that at least
- 00:41:29in my experience some of the courses
- 00:41:32that I look back on most fondly are the
- 00:41:34courses that I struggled with the most
- 00:41:36and in fact that's the basis of the next
- 00:41:39and easily one of the most important
- 00:41:41studying tools so a key theme in all of
- 00:41:45the excellent literature that is the
- 00:41:47peer- reviewed research on how best to
- 00:41:49study is that studying that feels
- 00:41:52challenging is the most effective I know
- 00:41:55nobody wants to hear this everyone wants
- 00:41:57to hear about flow everybody wants to
- 00:41:59hear about information just sinking into
- 00:42:02their brain by osmosis I think it was a
- 00:42:03Garfield cartoon where he talked about
- 00:42:05learning by osmosis there's this very
- 00:42:07cute real world video of a kid in a
- 00:42:10classroom uh I believe uh it's in China
- 00:42:13where he's taking the book and he puts
- 00:42:14it on his head maybe I can find this
- 00:42:15clip and he's just kind of like trying
- 00:42:17to wash it into his brain it's super
- 00:42:18cute clip but guess what that doesn't
- 00:42:20work I mean it works to put the book on
- 00:42:22your head it doesn't work to it's not
- 00:42:23going to get the information into your
- 00:42:25brain uh perhaps someday there will be
- 00:42:28ways to rapidly download information
- 00:42:30into neural circuits right now we know
- 00:42:33we've known for hundreds of not
- 00:42:35thousands of years that effort is the
- 00:42:40Cornerstone of learning so I know there
- 00:42:42probably some gron about that I know
- 00:42:44some of you perhaps were hoping that
- 00:42:45today I was going to tell you how to
- 00:42:47study so that studying wasn't
- 00:42:49painful I think I can accomplish that by
- 00:42:51the end of today's episode but in order
- 00:42:54to do that let's take another quiz okay
- 00:42:57so here's the quiz again you can answer
- 00:42:59these questions in your head you don't
- 00:43:00have to tell anyone but you could write
- 00:43:02them down or say them out loud if you
- 00:43:03want the first question
- 00:43:07is when during either your states of
- 00:43:11alertness or sleep does the remodeling
- 00:43:15of neural connections occur I like to
- 00:43:18think this is a pretty easy one okay the
- 00:43:20answer is during sleep the second
- 00:43:23question is what is one behavioral tool
- 00:43:27that you can use to improve
- 00:43:29focus the answer is simple mindfulness
- 00:43:33meditation which I'd prefer you think of
- 00:43:35Simply as a perceptual exercise so again
- 00:43:37just sit or lie down close your eyes
- 00:43:39focus on your breath when your attention
- 00:43:41drifts bring your attention back to your
- 00:43:43breath and so on or if you prefer you
- 00:43:46can do this Eyes Open by focusing on a
- 00:43:48visual Target either a foot or two feet
- 00:43:50or 3 ft away whatever distance is
- 00:43:52comfortable for you allowing yourself to
- 00:43:54Blink as needed but forcing yourself
- 00:43:57to focus on that visual Target for say 1
- 00:44:00to 3 minutes maybe even 3 to 5 minutes
- 00:44:02maybe even 10 minutes again please blink
- 00:44:04you don't want your eyes to dry both
- 00:44:06those tools will improve your ability to
- 00:44:08attend to focus to other material when
- 00:44:11the time comes okay the circuits for
- 00:44:13focus and attention themselves are
- 00:44:15subject to
- 00:44:16neuroplasticity and then the third
- 00:44:18question is can you name or List off in
- 00:44:22your mind three tools that the most
- 00:44:25effective students have been shown to
- 00:44:26use
- 00:44:28I can think
- 00:44:30of limiting distraction by virtue of
- 00:44:33putting away phones and telling others
- 00:44:35you won't be in contact with them two
- 00:44:37and I'm getting these out of order I
- 00:44:39realize is to isolate to study alone and
- 00:44:42the third that I can recall is to teach
- 00:44:47others in the same course okay you can
- 00:44:50probably think of a few others now why
- 00:44:53are we taking these silly little quizzes
- 00:44:55Well turns out they're not so silly when
- 00:44:59one considers that hopefully you'll
- 00:45:00remember the information from today so
- 00:45:04that you don't have to listen to it over
- 00:45:05and over again but that if ever there
- 00:45:08was a strongly research supported tool
- 00:45:11in the literature in the peer-reviewed
- 00:45:13literature about how students can learn
- 00:45:15information better it's testing and I
- 00:45:19know I know I know we think of tests as
- 00:45:22a way to evaluate our knowledge but it
- 00:45:25turns out that testing is one of the
- 00:45:26best ways to build our knowledge to
- 00:45:28retain our knowledge and again to offset
- 00:45:31forgetting now the study of testing as a
- 00:45:35learning tool not just as a way to
- 00:45:37evaluate how much information we've
- 00:45:39learned goes back over a hundred years
- 00:45:42there's a classic study that was done in
- 00:45:431917 where grade school age children
- 00:45:47read biographies so they read
- 00:45:50biographies and then the kids were
- 00:45:52divided into different groups one group
- 00:45:56read and reread and reread those
- 00:45:58biographies over and over another group
- 00:46:02read the biographies once and then were
- 00:46:04tested on those biographies but get this
- 00:46:08they tested themselves on those
- 00:46:09biographies simply by having to think
- 00:46:12about the information that they had read
- 00:46:15and trying to remember the information
- 00:46:17like what was the biography who was the
- 00:46:18person who are they married to what did
- 00:46:20they do when did they go to school what
- 00:46:22did they do in school what did they do
- 00:46:24in the world what role did they play in
- 00:46:26life so they essentially tested their
- 00:46:29own knowledge simply by going into their
- 00:46:31own head and asking themselves what they
- 00:46:32could remember about those biographies
- 00:46:34now keep in mind here that even though
- 00:46:38it's fairly apparent that reading a
- 00:46:41biography to three four times might seem
- 00:46:45more passive than testing oneself on a
- 00:46:48biography that they had read just
- 00:46:50once right you could imagine that
- 00:46:52thinking about the biography involves
- 00:46:54more effort and indeed it does but keep
- 00:46:57in mind also that the kids in the second
- 00:46:59group were only exposed to the biography
- 00:47:01once and yet when you look at the
- 00:47:04percent of accurate recall of
- 00:47:07information from those
- 00:47:08biographies the children that read the
- 00:47:11biography once and then made a
- 00:47:14deliberate point to think about that
- 00:47:16biography in their own mind to
- 00:47:18effectively test themselves on that
- 00:47:19material just within their heads over
- 00:47:22and over but an equal number of times as
- 00:47:24the kids that read the biographies
- 00:47:26directly on a page over and over vastly
- 00:47:30outperformed the kids that read the
- 00:47:31biographies over and over put
- 00:47:33differently reading and rereading
- 00:47:35material and re re rereading material is
- 00:47:39far less effective than reading material
- 00:47:42and then thinking about that material
- 00:47:44testing yourself on that material
- 00:47:45forcing yourself to bring that material
- 00:47:47to mind in your own mind and this is not
- 00:47:50just for sake of remembering more volume
- 00:47:53of material but also accuracy of recall
- 00:47:57of that material and that at least to me
- 00:48:00was pretty surprising at first until one
- 00:48:02starts to explore subsequent studies of
- 00:48:05the role of testing as a learning tool
- 00:48:07and then you start to realize that
- 00:48:09testing yourself is Far and Away the
- 00:48:12best tool for studying and learning not
- 00:48:14just for evaluating your knowledge but
- 00:48:16for actually studying and incorporating
- 00:48:20that knowledge into your neural circuits
- 00:48:23okay so I realize that anytime I or
- 00:48:24somebody else talks about a study that
- 00:48:26was done in 19 17 we think of people in
- 00:48:28these you know like wooden shoes and um
- 00:48:31in these School houses that look so
- 00:48:33different and uh kids dress so different
- 00:48:36let's get a little more modern here um
- 00:48:38keep in mind however that the nervous
- 00:48:40system hasn't really changed much in
- 00:48:42tens of thousands of years um
- 00:48:45nonetheless I think it's nice to think
- 00:48:46about a more recent study of how best to
- 00:48:50study and this study which by the way
- 00:48:53we'll provide a link to in the show note
- 00:48:54captions as well as a couple of reviews
- 00:48:56that include results from similar
- 00:48:58studies again I'm pointing to a body of
- 00:49:00research not just one study
- 00:49:02here looked
- 00:49:04at whether or not studying material four
- 00:49:08times so study study study
- 00:49:11study was better in terms of locking
- 00:49:15that information into people's minds
- 00:49:18allowing them to use that information
- 00:49:19flexibly which is an element of
- 00:49:21creativity essentially giving the
- 00:49:23Mastery of the material then a different
- 00:49:26Group which studied once studied the
- 00:49:28material twice studied the material
- 00:49:30three times then was tested on the
- 00:49:34material or a third group that studied
- 00:49:38material once then took one two yes
- 00:49:43three tests on the material now so what
- 00:49:45I just described was three groups all of
- 00:49:48whom read a passage this was a passage
- 00:49:50about animals about biology some other
- 00:49:53topics too in different experiments
- 00:49:55again three groups one group studies
- 00:49:57four times they study the material 1 2 3
- 00:50:01four
- 00:50:01times then later they take a test the
- 00:50:06second group studies one two three times
- 00:50:09takes a test on that material and then
- 00:50:11later takes a test the third group
- 00:50:14studies the material once then takes
- 00:50:17three tests on the material and then
- 00:50:19later takes a test so what's analyzed
- 00:50:22and compared between these different
- 00:50:23groups is their performance on that
- 00:50:26final test okay what I put in as the
- 00:50:29fifth bin there right because it was
- 00:50:32think about it as ssss so study study
- 00:50:35study study and then later test or SSS T
- 00:50:39study study study test and then later
- 00:50:41test or sttt study test test test and
- 00:50:44then later test so what's compared and
- 00:50:46contrasted is performance on the test
- 00:50:49some period of time later now some
- 00:50:51experiments made that final test of the
- 00:50:54material a couple days later other
- 00:50:56experiments made it a couple weeks later
- 00:50:58other experiments made it much later
- 00:51:01month or even a year later
- 00:51:03okay the point here is twofold first of
- 00:51:07all based on everything I've told you
- 00:51:09thus far you can probably guess who
- 00:51:12performed best on the test that occurred
- 00:51:14some period of time later okay right the
- 00:51:20performance on that final test was
- 00:51:24essentially proportional to the number
- 00:51:26ofest one had already taken on the
- 00:51:28material okay that should be pretty much
- 00:51:30obvious given the way we've been going
- 00:51:32today in this description of tests as a
- 00:51:35way to offset forgetting okay so the
- 00:51:37more tests that you
- 00:51:39take as a way to expose you yourself to
- 00:51:42the material the better you're going to
- 00:51:44perform on that material at some later
- 00:51:46point now of course at some point you
- 00:51:47have to be exposed to the material for
- 00:51:48the first time right that's why it's
- 00:51:50studying and learning but after one
- 00:51:52exposure to new material taking more
- 00:51:54tests on that material even if you don't
- 00:51:57perform that well on those tests as long
- 00:51:59as you're able to see the accurate
- 00:52:01answers to those tests and compare your
- 00:52:03answers to those answers will lead to
- 00:52:05better performance on the ultimate test
- 00:52:07and retention of that material at some
- 00:52:09later time put differently it's not
- 00:52:12about how many times you study the
- 00:52:14material or how many times you're
- 00:52:16exposed to the material it's about being
- 00:52:18exposed to the material doing your best
- 00:52:20to focus and attend to that material and
- 00:52:23then self- testing yourself on that
- 00:52:25material or as the case may be if an an
- 00:52:28instructor is the one giving you the
- 00:52:30test but nonetheless taking tests on
- 00:52:32that material not just once but ideally
- 00:52:35two or three times that's what really
- 00:52:38locks the material into your neural
- 00:52:40circuits that's what's going to lead to
- 00:52:42the most pervasive change the most
- 00:52:44durable change we should say in your
- 00:52:47neural circuits that carry that material
- 00:52:50that hold that material in your mind
- 00:52:51what we call Neural encoding okay so the
- 00:52:56the more times you test yourself or that
- 00:52:57you are tested on material the better
- 00:52:59your retention of that material now some
- 00:53:01people will immediately say well
- 00:53:03goodness what if I learned it and then
- 00:53:05I'm tested and I'm somehow consolidating
- 00:53:08the wrong or inaccurate material but it
- 00:53:10doesn't appear to be the case as long as
- 00:53:12you learn what the correct answers to
- 00:53:14the tests are even if you're getting you
- 00:53:16know 40 or 50% or less accurate on those
- 00:53:19tests that you take immediately after
- 00:53:20the studying
- 00:53:22period that's still going to be a better
- 00:53:24strategy than rereading the material
- 00:53:26which ought to be somewhat surprising it
- 00:53:29certainly was surprising to me but you
- 00:53:31know what's even more surprising and a
- 00:53:33little scary and that we all should know
- 00:53:34and I wish I had learned when I was like
- 00:53:36in the second grade is that if you ask
- 00:53:40students how confident are you in the
- 00:53:43material that you just learned how well
- 00:53:46do you think you would perform on a test
- 00:53:48what you see consistently in these
- 00:53:51studies I'm chuckling because it's kind
- 00:53:53of mindblowing is that the students who
- 00:53:55study the the material that is who were
- 00:53:57exposed to the material four times think
- 00:54:00that they are going to perform best on
- 00:54:02the ultimate exam however the students
- 00:54:05that study the material once and then
- 00:54:08are tested three times on that
- 00:54:11material they think that ultimately
- 00:54:14they're going to perform least well for
- 00:54:17instance they ask them their confidence
- 00:54:18how well do you think he would perform
- 00:54:19on a test of this material in two weeks
- 00:54:21or in a year or in six months or even
- 00:54:24tomorrow they report that is the
- 00:54:26students in the study test test test
- 00:54:30group
- 00:54:31report much lower confidence in the
- 00:54:33material much lower sense of Mastery of
- 00:54:35the material compared to the students
- 00:54:37that were exposed to the material four
- 00:54:39times who are saying yeah I think I
- 00:54:40would do pretty well or very well and
- 00:54:43guess what the exact opposite is true
- 00:54:45put differently when you're exposed to
- 00:54:47material over and over and over again
- 00:54:49you think you've learned the material in
- 00:54:51fact your confidence that you've learned
- 00:54:53the material increases with each
- 00:54:55subsequent exposure to the material but
- 00:54:58actually you haven't learned it at all
- 00:55:00compared to the people that are exposed
- 00:55:03to the material and then take tests on
- 00:55:05the material often times straining to
- 00:55:07get the answers right on those tests in
- 00:55:09fact sometimes getting those answers
- 00:55:10dead wrong and then realizing they get
- 00:55:13those answers dead wrong or sometimes
- 00:55:15they just sense it but guess what
- 00:55:17testing yourself once twice maybe three
- 00:55:19times prior to the ultimate test of your
- 00:55:22knowledge of that material is Far and
- 00:55:25Away the best way to lock that material
- 00:55:28into those neural circuits now I say I
- 00:55:30wish I had learned this when I was a
- 00:55:32student because to some extent I used a
- 00:55:35self- testing approach the one most
- 00:55:38Salan example of that is I took a course
- 00:55:40when I was in college I still remember
- 00:55:43it was bioscience's 169 L neuroanatomy
- 00:55:46laboratory taught by Ben ree he's still
- 00:55:49there I believe and he was known then
- 00:55:52and I'm sure still now if he's still
- 00:55:54teaching as extremely challenging
- 00:55:58Professor extremely challenging not as a
- 00:56:00person not as personality but a ton of
- 00:56:03detail and rigor and high high high
- 00:56:06expectation for this laboratory course
- 00:56:08in neuroanatomy which involved lectures
- 00:56:11it involved a neuroanatomy textbook
- 00:56:13where you'd look at you know essentially
- 00:56:15panels of different brain sections from
- 00:56:16different species different types of
- 00:56:17stains of different brain tissue mind
- 00:56:19you this is an undergraduate course and
- 00:56:21then there was a laboratory component
- 00:56:23hence the L in 169 L where you'd have to
- 00:56:25go from microscope station to microscope
- 00:56:27station identifying structures based
- 00:56:31simply on what you could see down the
- 00:56:32microscope and therefore you had to know
- 00:56:35what the stain was you know what was
- 00:56:37essentially visible to you on the slide
- 00:56:39because certain stains reveal certain
- 00:56:40things like the what we call the cell
- 00:56:42body of neurons versus the um the sort
- 00:56:44of wires what we call the axons between
- 00:56:46neurons etc etc I remember thinking this
- 00:56:49is a really hard course it was a very
- 00:56:52difficult course and my mode of studying
- 00:56:54for the course involved of course going
- 00:56:57to class doing the dissection we
- 00:56:59dissected a sheep brain at that time um
- 00:57:02so we're literally dissecting an actual
- 00:57:04brain we're doing microscope work we're
- 00:57:07learning about it from the textbook and
- 00:57:08from lecture and there was a ton of new
- 00:57:11nomenclature about rostral codal dorsal
- 00:57:13vent all the stuff of neuron anatomy and
- 00:57:16then at some point I made the decision
- 00:57:19perhaps on the basis of sheer overwhelm
- 00:57:22to study for neuron Anatomy by laying
- 00:57:26down on my bed in my studio apartment I
- 00:57:29lived alone and closing my eyes and
- 00:57:33flying through the nervous system from
- 00:57:36different entry points through the ear
- 00:57:39review my coar anatomy through the eye
- 00:57:42review my retinal Anatomy through the
- 00:57:45dorsal surface of the brain think about
- 00:57:47the susai and gyri and then the Corpus
- 00:57:49colossum and then I got and and I can
- 00:57:50still see it in my mind's eye so my
- 00:57:53process of studying for neuroanatomy yes
- 00:57:56involved exposure to the material but it
- 00:57:58involved hours upon hours of thinking
- 00:58:01about the material within my own brain
- 00:58:06so it's a little bit meta unto itself
- 00:58:07there as a consequence I like to think
- 00:58:10in fact I believe um with some
- 00:58:12confidence that I have uh very high
- 00:58:15Mastery of neuroanatomy in different
- 00:58:18species as well now that's my particular
- 00:58:20area of expertise I don't think I'm any
- 00:58:22kind of savant with respect to neuro
- 00:58:23Anatomy I just spent hours upon hours
- 00:58:25learning the material and then reviewing
- 00:58:28the
- 00:58:28material within my mind so in other
- 00:58:31words testing myself here's what I would
- 00:58:33do if I were moving down a trajectory of
- 00:58:36a of a neural tract for instance between
- 00:58:38say the the hippocampus and a
- 00:58:40neighboring structure and I didn't know
- 00:58:42what was next I would then go look it up
- 00:58:44in the textbook and then I'd go back to
- 00:58:45this you know mental exercise
- 00:58:47visualization type studying it really
- 00:58:49wasn't studying is the point the point
- 00:58:52is that I was testing myself I was
- 00:58:54trying to find the points in which I no
- 00:58:56longer had the knowledge to move further
- 00:58:59through in this case my mental image of
- 00:59:01the brain but through the material and
- 00:59:03this is the key aspect of testing it's
- 00:59:06not about just knowing how many things
- 00:59:08you get right how many things you get
- 00:59:10wrong it's about recognizing exactly
- 00:59:12what you know and don't know and an
- 00:59:14important component of testing is
- 00:59:16running up against those things where
- 00:59:17you say h i can't remember I don't know
- 00:59:20what comes next or I'm certain that that
- 00:59:22structure is the fimbria and then you go
- 00:59:24and you look and you go it's not the
- 00:59:25fima but guess what I'll never forget
- 00:59:28for instance the location of the
- 00:59:30habenula or what it looks like a
- 00:59:32structure which by the way since these
- 00:59:34names are kind of uh esoteric at that
- 00:59:36time we didn't know what it does it
- 00:59:37turns out it's involved in
- 00:59:39disappointment it's key to the
- 00:59:40depression circuits or the circuits that
- 00:59:42underly depression in some individuals
- 00:59:44it is um suppressed by viewing of
- 00:59:47morning sunlight we know that too and by
- 00:59:49getting too much artificial light
- 00:59:51exposure in the middle of the night you
- 00:59:52enhance activity of the habenula
- 00:59:54beautiful work not done by my laboratory
- 00:59:56but other Laboratories demonstrates that
- 00:59:59so what I just did for you there was
- 01:00:01hopefully teach you a little something
- 01:00:02about neuron anatomy and depression but
- 01:00:05more importantly to just illustrate that
- 01:00:07how you test yourself can be highly
- 01:00:09individual to the ways in which you
- 01:00:11learn best now that contradicts what I
- 01:00:13said earlier which is that this notion
- 01:00:15that people have different learning
- 01:00:16styles and you know some people are
- 01:00:18verbal Learners and some people are
- 01:00:20auditory Learners and Etc doesn't really
- 01:00:22hold up so well anymore but which by the
- 01:00:26way is not to say there isn't any
- 01:00:27research to support it it's just that
- 01:00:29it's heavily contradicted by other
- 01:00:31research that contradicts that idea but
- 01:00:34your approach your mode of best testing
- 01:00:37yourself on material for sake of
- 01:00:39offsetting the forgetting process and
- 01:00:41for identifying where you have gaps in
- 01:00:43your knowledge or where you thought you
- 01:00:45knew something but you don't or you knew
- 01:00:47something but it's wrong that can be
- 01:00:49accomplished through the approach that's
- 01:00:52best for you which in my case turned out
- 01:00:53to be lying down and thinking about the
- 01:00:55material in my head head and still to
- 01:00:57this day when I read a paper I try I
- 01:01:00don't always do this but what I try to
- 01:01:01do is then take a walk in my yard or
- 01:01:03outside and I try and think about the
- 01:01:05key components of that paper and think
- 01:01:07about some of the graphs that are
- 01:01:08especially important which is what I'm
- 01:01:10going to do now I'd like to take a brief
- 01:01:12break to thank one of our sponsors
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- 01:01:24others on the podcast have talked a a
- 01:01:26lot about the critical importance of
- 01:01:27hydration for proper brain and bodily
- 01:01:29function research shows that even a
- 01:01:31slight degree of dehydration can really
- 01:01:33diminish cognitive and physical
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- 01:01:37get adequate electrolytes in order for
- 01:01:38your body and brain to function at their
- 01:01:40best the electrolytes sodium magnesium
- 01:01:42and potassium are critical for the
- 01:01:44functioning of all the cells in your
- 01:01:45body especially your neurons or nerve
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- 01:01:54water when I wake up in the morning and
- 01:01:56I drink that basically first thing in
- 01:01:57the morning I also drink element
- 01:01:59dissolved in water during any kind of
- 01:02:00physical exercise I'm doing especially
- 01:02:02on hot days if I'm sweating a lot and
- 01:02:04losing water and electrolytes if you'd
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- 01:02:19element.com huberman to claim a free
- 01:02:22sample pack okay so I like to think that
- 01:02:24we're establishing that testing yourself
- 01:02:25or testing your students or being tested
- 01:02:28by your teacher is the best way to
- 01:02:32offset
- 01:02:33forgetting let's look at the literature
- 01:02:35that actually supports that statement
- 01:02:37directly because in the previous
- 01:02:39experiment I described it was either
- 01:02:40study study study study or study study
- 01:02:43study test or study test test test and
- 01:02:45then later everybody takes a test at the
- 01:02:46same time a variant on that was done
- 01:02:50where they had one group of
- 01:02:52students study material so this is new
- 01:02:55material and when I say study I mean
- 01:02:57they were exposed to the material for
- 01:02:58the first
- 01:02:59time and I realize this is a little bit
- 01:03:01of a problem because we're using the
- 01:03:03word study when in fact I'm trying to
- 01:03:05make the point that testing yourself is
- 01:03:07studying okay so uh forgive me but this
- 01:03:10is the way it's mapped out in these
- 01:03:11experiments in these papers should you
- 01:03:13look them up in our show note
- 01:03:15captions one group is exposed to the
- 01:03:18material what we're call studying and
- 01:03:20then takes a test immediately after they
- 01:03:23are told what they got right what they
- 01:03:25got wrong on that test and what the
- 01:03:26correct answers are and then sometime
- 01:03:28later after a delay they take a test of
- 01:03:32the same material another group studies
- 01:03:35that is they're exposed to the material
- 01:03:37then there's a delay okay that delay
- 01:03:39could be days it could be weeks this
- 01:03:42experiment has been done every which way
- 01:03:44it seems by now then they're tested and
- 01:03:48then there's another delay and then they
- 01:03:50take a test at the same time that group
- 01:03:53one did okay so again it's study test
- 01:03:56long delay test for group one or study
- 01:03:59delay test delay test for group two
- 01:04:03remember the final test is taken at the
- 01:04:04same time by everybody or group three
- 01:04:08study that is they're exposed to the
- 01:04:10material then a long long long long long
- 01:04:11delay then a test and then the ultimate
- 01:04:14test okay the test that everybody takes
- 01:04:16at the same time can you guess which
- 01:04:19group performed best and the essence of
- 01:04:22this experiment if you're listening to
- 01:04:23this and it's not clear in your mind is
- 01:04:25you're either expose to the material and
- 01:04:27test it very soon after and then take a
- 01:04:29test after a delay say a week or two
- 01:04:31weeks later or you're exposed the
- 01:04:34material there's a delay of a few days
- 01:04:36then you take a test and then another
- 01:04:38few days and then you take a test so
- 01:04:39it's more evenly spaced or if you were
- 01:04:42assigned to the third group you'd study
- 01:04:44you're not going to see the material or
- 01:04:45be tested on it until a day or two
- 01:04:48before the big test then you're tested
- 01:04:50on it you get your answers back and then
- 01:04:51you're tested on it again you could
- 01:04:52imagine that the last group might
- 01:04:54perform best because they're reexposed
- 01:04:56to the material they're told what the
- 01:04:58correct answers are so they know what
- 01:04:59they got wrong they know what they got
- 01:05:01right and then the next day they're
- 01:05:03taking the test again I would have
- 01:05:04thought that group would perform best
- 01:05:07but it turns out the opposite is true
- 01:05:09it's pretty wild the best performance
- 01:05:12comes from being exposed to material
- 01:05:14what in this experiment they're called
- 01:05:15studying okay so they read a passage or
- 01:05:18they learn some math material or
- 01:05:19language material or music material or
- 01:05:21motor
- 01:05:22learning then they take a test very soon
- 01:05:25after even same day or next day and then
- 01:05:27there's a long delay and then they take
- 01:05:29the test that group performs best put
- 01:05:31differently test yourself very soon if
- 01:05:35not the same day certainly the next day
- 01:05:37or so very soon after being exposed to
- 01:05:39material for the first time as opposed
- 01:05:42to the last group which performs worst
- 01:05:45they perform worse being exposed to
- 01:05:46material then there's a long period of
- 01:05:48time then you're tested on that material
- 01:05:50you are told what you got right what you
- 01:05:52got wrong and then the next day you take
- 01:05:53a test again even with overlapping
- 01:05:56questions to the test you took just the
- 01:05:58day before and that group performs worst
- 01:06:00and the group that studied had a gap
- 01:06:03test that had a gap test they performed
- 01:06:05somewhere in the middle what does this
- 01:06:07tell us what it tells us is so important
- 01:06:09Visa neuroplasticity Vis of V best
- 01:06:11learning strategies this is something
- 01:06:13that goodness I wish I had learned when
- 01:06:16I was in graduate school when I was an
- 01:06:20undergraduate when I was in high school
- 01:06:22and Elementary School goodness even when
- 01:06:24I was in kindergarten I wish IID learned
- 01:06:27this test yourself on the material that
- 01:06:30you were just exposed to very soon after
- 01:06:32your first exposure to it
- 01:06:35because that offsets the natural
- 01:06:38forgetting of new material that the
- 01:06:40brain is exposed to this is absolutely
- 01:06:44the Hallmark of all the impressive data
- 01:06:47about testing as a tool for learning
- 01:06:50testing oneself or your students or
- 01:06:53being tested if you're the student by
- 01:06:55your teacher
- 01:06:56as a tool not just for evaluating
- 01:06:59performance for knowing what you know
- 01:07:01and don't know but for consolidating
- 01:07:03that information in your neural circuits
- 01:07:06and when I say consolidating that
- 01:07:08information in your neural circuits I
- 01:07:09realize it's a
- 01:07:10mouthful what we know is that this
- 01:07:14business of putting the testing soon
- 01:07:16after exposure to new material is about
- 01:07:18offsetting the forgetting of that
- 01:07:20material so you might say wait if that's
- 01:07:23true how come studying the material and
- 01:07:24then waiting and then then taking two
- 01:07:26tests right back to back where you're
- 01:07:27learning the material again during the
- 01:07:28test that should be the best performing
- 01:07:30group ah well there seems to be
- 01:07:32something fundamentally different about
- 01:07:34first exposure to material versus
- 01:07:37testing yourself on that material and we
- 01:07:39don't know exactly what that is there's
- 01:07:41some interesting neural Imaging data in
- 01:07:43humans that this has to do something
- 01:07:46with this notion of familiarity with
- 01:07:49material this is very simple so this is
- 01:07:51easy to understand even though it
- 01:07:52involves a little bit of memory
- 01:07:53Neuroscience nomenclature
- 01:07:56familiarity with something recognizing
- 01:07:59it is not the same thing as having
- 01:08:02agility with that thing of having
- 01:08:04Mastery of that thing is not the same
- 01:08:06thing as having Mastery of the material
- 01:08:07of having committed it to memory okay so
- 01:08:10when you read something over and over
- 01:08:12and over you see it over and over you
- 01:08:15hear it over and over you think about it
- 01:08:16over and over of course you're reading
- 01:08:18it or you're hearing about it and you
- 01:08:20think that you're learning the material
- 01:08:22that your neural circuits are changing
- 01:08:24but it's a pretty passive process or
- 01:08:26even if it's a difficult chapter to read
- 01:08:28or a difficult passage of
- 01:08:32Music the difference is when you're
- 01:08:34tested on material something happens in
- 01:08:37your performance of or recalling of if
- 01:08:40it's just you know cognitive or you're
- 01:08:41writing it down or you're told to play
- 01:08:43the the music or do the the motor
- 01:08:45movement something happens in the error
- 01:08:48the getting wrong of certain things that
- 01:08:51cues your nervous system to lock in the
- 01:08:53information that you have right and to
- 01:08:56remember what you have wrong so that you
- 01:08:58then correct it which is Far and Away
- 01:08:59different than exposure and reexposure
- 01:09:03and reexposure okay so it's a
- 01:09:06prerequisite to learning that you need
- 01:09:07to see the material for the first time
- 01:09:09you can't just start testing yourself on
- 01:09:10material you've never been exposed to I
- 01:09:12suppose you could but you're going to
- 01:09:14get it I would imagine mostly wrong or
- 01:09:16all wrong but this business of using
- 01:09:20testing very soon after first exposure
- 01:09:22to material as a tool to study
- 01:09:26in order to offset forgetting is clearly
- 01:09:28tapping into this difference between
- 01:09:30familiarity with something for which we
- 01:09:32know certain brain areas are activated
- 01:09:36versus recollection being able to take
- 01:09:39that material and bring it to memory
- 01:09:42bring it to your focused attention and
- 01:09:43use that material I realize this is a
- 01:09:46bit abstract and some of this is still
- 01:09:47being parsed if you're interested in the
- 01:09:49Neuroscience of familiarity with
- 01:09:51something versus your ability to
- 01:09:52actually recall something and have
- 01:09:54Mastery of that material
- 01:09:56there's a really nice review that I
- 01:09:58provide a link to in the show note
- 01:10:00caption it's published in the journal
- 01:10:02hippocampus I always chuckle at the fact
- 01:10:04that there's a journal that named after
- 01:10:05a brain structure after all as far as I
- 01:10:07know there isn't a journal called retina
- 01:10:09or amydala um and I have a brief
- 01:10:11anecdote from graduate school whereby I
- 01:10:14learned that there was this journal
- 01:10:16hippocampus and I was at a graduate it
- 01:10:18was my first graduate student gathering
- 01:10:21in graduate school and the guy who
- 01:10:22hosted it um turns out is AUM AR in the
- 01:10:25field of learning and memory and I was
- 01:10:28saying you know this is ridiculous like
- 01:10:29there's a journal called hippocampus
- 01:10:31here I am first year graduate student he
- 01:10:33goes yeah there is and I said yeah
- 01:10:34that's so silly like who are the who are
- 01:10:36the like who are the idiots that name a
- 01:10:38journal after a brain structure turns
- 01:10:41out there's also a journal called
- 01:10:42cerebral cortex and there's probably one
- 01:10:43about spinal cord so it turns out I I
- 01:10:45was the idiot saying this and the guy I
- 01:10:47was talking to who of course was the
- 01:10:49host of the party said yeah actually uh
- 01:10:51that's my journal I founded the journal
- 01:10:52hippoc campus so you can look them up so
- 01:10:54at this Point you're going to take a
- 01:10:56test and it's a super easy test okay I
- 01:10:58realize we're a bit into the material
- 01:11:01and we're all probably fatiguing a
- 01:11:03little bit marveling I hope at what an
- 01:11:05incredible tool testing and in
- 01:11:07particular self- testing soon after
- 01:11:09being exposed to new material is and the
- 01:11:12question is this and by the way this is
- 01:11:14an open-ended question you're not
- 01:11:16supposed to know the answer because I
- 01:11:18haven't told you the answer yet but I
- 01:11:19want you to think about
- 01:11:22this if one looks at the majority of
- 01:11:25data in this whole field of testing as a
- 01:11:28studying
- 01:11:29tool how much improvement do you think
- 01:11:32you get from testing yourself once on
- 01:11:35new material do you think it's a you
- 01:11:38know 10% Improvement a 20% Improvement
- 01:11:40so here I'm just comparing to testing
- 01:11:42yourself once on material that you were
- 01:11:44just exposed to For the First Time
- 01:11:46versus not testing yourself at all okay
- 01:11:49how how much do you think you improve
- 01:11:51the answer is about 50% 5 zero and I can
- 01:11:56say that on the basis of the fact
- 01:11:58that in studies of musical learning of
- 01:12:01mathematical learning of language
- 01:12:02learning of motor learning when subjects
- 01:12:05are exposed to new material and then
- 01:12:06tested at some period of time later the
- 01:12:10percentage of information they get right
- 01:12:12or that they are able to perform
- 01:12:15something correctly diminishes over time
- 01:12:18especially because they're not doing any
- 01:12:20practice and no testing in the
- 01:12:22intervening time this was built into
- 01:12:24these experiments
- 01:12:26and then you simply ask how much of the
- 01:12:27material was
- 01:12:29forgotten if they just were exposed to
- 01:12:31the material so in the case of say music
- 01:12:34learning this would be you know your
- 01:12:35teacher sits down next to you and shows
- 01:12:37you the scales on the piano but then
- 01:12:40you're not practicing them in between
- 01:12:41versus um or perhaps another example
- 01:12:44would be somebody gives you a lecture
- 01:12:45about a particular phase in history and
- 01:12:47then you're not being exposed to the
- 01:12:49material again and you're not self-
- 01:12:50testing versus if you just take one test
- 01:12:53even a self-directed test of the
- 01:12:55material immediately after irrespective
- 01:12:57of how well you perform you have the
- 01:13:00amount of forgetting okay I want you to
- 01:13:02think about self testing in this way
- 01:13:05because we're thinking about optimal
- 01:13:07studying strategies you have the amount
- 01:13:10of forgetting that would normally occur
- 01:13:12this is oh so important in fact I don't
- 01:13:14even know that most neuroscientists
- 01:13:15think about learning and neuroplasticity
- 01:13:18this way most everybody including
- 01:13:20neuroscientists are taught we taught
- 01:13:23continue to be taught that you're
- 01:13:25exposed to new material you focus okay
- 01:13:26then during sleep there's remodeling of
- 01:13:28the connections all that's true but we
- 01:13:30really need to think about how most
- 01:13:33information that comes into our nervous
- 01:13:34system each day is forgotten most of it
- 01:13:37is completely discarded there are some
- 01:13:39rare clinical deficits where people
- 01:13:42remember everything and I'll tell you
- 01:13:43these people really struggle in life
- 01:13:46they do not do well in work in
- 01:13:48relationships they remember every little
- 01:13:51detail of everything and it is
- 01:13:52incredibly disruptive to their quality
- 01:13:55of life it's nothing you want you want
- 01:13:57to have a great memory for the right
- 01:13:59things so when you self test material
- 01:14:04you have the amount of forgetting that
- 01:14:06occurs compared to if you're just
- 01:14:08exposed to the material I want you to
- 01:14:10keep that fact in mind because that fact
- 01:14:13is the one that really hit me upside the
- 01:14:15head and made me realize goodness
- 01:14:17gracious how I wish that I'd self-
- 01:14:20tested myself on material that I wanted
- 01:14:22to remember over time rather than
- 01:14:25reading it over and over I had this
- 01:14:26elaborate process for studying that I
- 01:14:28used all through college and graduate
- 01:14:29school and it worked pretty well for me
- 01:14:31where I'd read and highlight then I'd
- 01:14:33write out my notes then I would write
- 01:14:34little paragraphs about that stuff now
- 01:14:36some of that probably mimicked self-
- 01:14:38testing indeed it had to have and then
- 01:14:40of course I would take the quizzes and I
- 01:14:41would go to office hours you know once I
- 01:14:43got serious about school I got really
- 01:14:45serious about school and of course I
- 01:14:46still forget things I've made errors on
- 01:14:48this podcast before apart from going too
- 01:14:50fast or making a joke that people didn't
- 01:14:52perceive as a joke a whole story there
- 01:14:54but in any case of course I make errors
- 01:14:56of course I've forgotten certain things
- 01:14:58and sometimes I misspeak I always strive
- 01:15:00to get things accurately we correct
- 01:15:02things in the show note captions if
- 01:15:03they're called out to us we're now using
- 01:15:05AI to review the podcast and adjust
- 01:15:08anywhere using insertion so actually
- 01:15:10replacing those words if we need to and
- 01:15:12so on and so forth but yes we all forget
- 01:15:14things we all make errors but if I had
- 01:15:18just known that testing myself on
- 01:15:20material while walking out of class or
- 01:15:23soon after getting home or later that
- 01:15:24evening or the next day would allow me
- 01:15:27to perform so much better on an exam a
- 01:15:30midterm or a final exam and of course I
- 01:15:33still would have studied because I was
- 01:15:34committed and you should still study as
- 01:15:35much as you feel is necessary to get
- 01:15:37Mastery of the material for
- 01:15:39you however if I had known that testing
- 01:15:43oneself or being tested soon after
- 01:15:44exposure to material would have the
- 01:15:46amount of forgetting even out to a year
- 01:15:48later I definitely would have saved
- 01:15:51myself a lot of time let's talk about
- 01:15:53some specifics of ways that you can self
- 01:15:55test or if you're a teacher or if you
- 01:15:57have good dialogue with your teacher and
- 01:15:59they are open-minded perhaps they are
- 01:16:01open to hearing about what are the best
- 01:16:03forms of testing oneself as a tool for
- 01:16:08learning the best tests are open-ended
- 01:16:13short
- 01:16:14answer very minimal prompt tests not
- 01:16:18unlike the type that we've taken today
- 01:16:20during this podcast as compared to
- 01:16:23multiple choice tests multiple choice
- 01:16:25questions allow for familiarity of names
- 01:16:28of facts you know it's going to be a b c
- 01:16:31d and sometimes e is you know A and C
- 01:16:35and so on and so forth and within each
- 01:16:37of those a b CDE e answers and you're
- 01:16:40looking for the right answer you're
- 01:16:41looking for the familiarity the
- 01:16:43recognition of something yes this not
- 01:16:45that okay that's the best answer you
- 01:16:46Circle C okay this kind of thing as
- 01:16:49opposed to an open-ended question where
- 01:16:51you have to write out your answer you
- 01:16:52have to recall the information right it
- 01:16:55requires a much greater degree of
- 01:16:57Mastery of the information than does
- 01:17:00familiarity or recognition of the
- 01:17:03material so the best tests as study
- 01:17:06tools are going to be open-ended short
- 01:17:09answer questions or even long answer
- 01:17:11questions now there's one exception to
- 01:17:13this which are multiple choice tests
- 01:17:16that include tricks okay if you've ever
- 01:17:18taken the GRE the graduate school
- 01:17:20entrance exam or the elsat or the MCAT
- 01:17:24there are some questions in there that
- 01:17:25are very straightforward but in those
- 01:17:27standardized tests they tend to include
- 01:17:30some quote unquote trick questions in
- 01:17:33which those questions don't allow you to
- 01:17:35just recognize the correct answer and
- 01:17:37distinguish it from the other incorrect
- 01:17:39answers but rather they have answers in
- 01:17:42there that on first blush look like the
- 01:17:45right answer and people have a tendency
- 01:17:46to Circle those and move on or to select
- 01:17:49those and move on but if you think about
- 01:17:52the material a little more deeply turns
- 01:17:54out those quote unquote obvious answers
- 01:17:56are actually the incorrect answers so
- 01:17:59there are versions of multiple choice
- 01:18:01tests where it requires a greater degree
- 01:18:04of Mastery of the material where simple
- 01:18:06familiarity won't serve you and you
- 01:18:08actually have to be able to recall the
- 01:18:10different components of information
- 01:18:12leading into that but those are a bit
- 01:18:14more rare certainly in the context of
- 01:18:17other kinds of learning like musical
- 01:18:19learning although I suppose for music
- 01:18:20theory that could be relevant but when I
- 01:18:22say Music Learning I'm just kind of
- 01:18:24fating to the idea of the mechanics of
- 01:18:26musical learning but of course there's
- 01:18:27music theory Etc so what I'm effectively
- 01:18:31saying is the ultimate exam the final
- 01:18:33exam the midterm exam the exam that's
- 01:18:35administered to you rarely do you have
- 01:18:37control over the format of that exam
- 01:18:39sometimes it's mixed format but the
- 01:18:41different ways in which you self- test
- 01:18:43as a form of studying are really key and
- 01:18:46ideally you would make these open-ended
- 01:18:49in other words you would not simply rely
- 01:18:51on multiple choice you would rely on a
- 01:18:54form of self- testing or that you give
- 01:18:56your students or that your teacher gives
- 01:18:58you that requires you to think about the
- 01:19:00material with some degree of depth with
- 01:19:02some degree of effort and of course
- 01:19:03you're going to get certain things wrong
- 01:19:05now I would hope that if testing is
- 01:19:06being used as a learning tool as opposed
- 01:19:09to just for evaluation but here we're
- 01:19:12talking about using testing as a
- 01:19:14learning tool that it wouldn't impact at
- 01:19:17least not at that moment your final
- 01:19:20performance in the course or whatever it
- 01:19:22is rather it is testing for sake of
- 01:19:24learning learning now we know from the
- 01:19:26literature that students don't like pop
- 01:19:30quizzes I gave you a few today and
- 01:19:32forgive me they don't like pop quizzes
- 01:19:34and we know this in the form of the
- 01:19:37reduction in teaching evaluation scores
- 01:19:39okay uh having received teaching
- 01:19:41evaluation scores of different uh let's
- 01:19:44say values over the years and I always
- 01:19:46take the feedback
- 01:19:48seriously one Salient comment that just
- 01:19:50leapt into my mind was the fact that I
- 01:19:52end up mentioning my Bulldog Costello
- 01:19:54too often in class so here I'm
- 01:19:56mentioning him again just to get back at
- 01:19:58that one student that said I mention too
- 01:19:59much I'll mention him as much as I want
- 01:20:01the point here is that when students
- 01:20:04evaluate their teachers they tend to
- 01:20:06punish their teachers for pop quizzes
- 01:20:09does that mean pop quizzes aren't
- 01:20:11effective no but you know what's more
- 01:20:12effective telling students at the outset
- 01:20:14of class or telling yourself at the
- 01:20:16outset of any kind of learning
- 01:20:19Expedition because this isn't just about
- 01:20:21the classroom that you're going to take
- 01:20:23a bunch of exams that you're going to
- 01:20:25use testing or quizzes whatever you want
- 01:20:27to call them as a form of teaching and
- 01:20:30learning and that you can expect five
- 01:20:33tests or five quizzes during the course
- 01:20:36of being presented the material or that
- 01:20:38you are going to test yourself every day
- 01:20:40after the material now sometimes you
- 01:20:41have to go from one class to the next
- 01:20:43class there isn't an opportunity to test
- 01:20:44yourself but guess what's not going to
- 01:20:46be helpful walking out of class and
- 01:20:47getting immediately on to your phone we
- 01:20:49know that that probably inhibits your
- 01:20:51ability to remember the material because
- 01:20:53it's going to enhance forgetting because
- 01:20:55you do have this key
- 01:20:56opportunity right after being exposed to
- 01:20:59new material to help offset the
- 01:21:01forgetting by testing yourself on that
- 01:21:03material as soon as possible after being
- 01:21:05exposed to it so again even though I did
- 01:21:08not attend school in an era where we had
- 01:21:11smartphones and texting I recall walking
- 01:21:13out of class and just walking out of
- 01:21:16class and going to my bicycle but of
- 01:21:20course there were people to talk to
- 01:21:21there were other things to attend to if
- 01:21:23you're really serious about learning
- 01:21:24material take a few seconds maybe even a
- 01:21:27few minutes after being exposed to that
- 01:21:28material and think about that material
- 01:21:30test yourself on it and if you find that
- 01:21:32you don't know the material you're
- 01:21:34confused by it or overwhelmed by it
- 01:21:36great you just accomplished the first
- 01:21:38step in queuing your nervous system to
- 01:21:40the fact that it needs to learn that
- 01:21:42material and you've created an
- 01:21:43opportunity for enhanced neuroplasticity
- 01:21:46which is really what all of the stuff
- 01:21:48about testing as a form of studying is
- 01:21:50about you're going to test yourself so
- 01:21:52that you figure out what you don't know
- 01:21:55so that you then look up that material
- 01:21:56test yourself on it again so that
- 01:21:59ultimately you
- 01:22:00forget very little of it if any now
- 01:22:03there are other components to learning
- 01:22:05and neuroplasticity that I've talked
- 01:22:06about on previous podcast that are just
- 01:22:08too interesting not to mention but I'm
- 01:22:09just going to mention them in brief
- 01:22:11things like Gap effects Gap effects are
- 01:22:13oh so cool and they've been demonstrated
- 01:22:15for lots of different forms of learning
- 01:22:17Gap effects
- 01:22:18are what I just did which is to take
- 01:22:21periodic pauses in the learning of
- 01:22:24material as short as 5 to 10 seconds but
- 01:22:27even as long as 30 seconds during which
- 01:22:29guess what your hippocampus the neurons
- 01:22:31in your hippocampus repeat information
- 01:22:34that you've been exposed to for the
- 01:22:35first time at a rate 20 to 30 times
- 01:22:39faster than
- 01:22:41typical just as it does during rapid ey
- 01:22:44movement sleep so if you are a teacher
- 01:22:46and or if you are a
- 01:22:49learner periodically throughout an
- 01:22:52episode a class or whatever of trying to
- 01:22:53learn new motor skills or music skills
- 01:22:55or whatever kind of
- 01:22:57learning pause and let your hippocampus
- 01:23:01generate more repetitions of that
- 01:23:02material than it would otherwise if you
- 01:23:04just tried to Barrel through so I
- 01:23:06realize as we've gone through today's
- 01:23:08discussion that words like test and quiz
- 01:23:11evaluation offsetting forgetting all of
- 01:23:13that stuff can you know Spike people's
- 01:23:16cortisol it can uh give us flashbacks to
- 01:23:19uncomfortable classroom experiences
- 01:23:20related to being called on cold called
- 01:23:23uh for the answer um a vicious trick
- 01:23:26that instructors play keep in mind that
- 01:23:28testing as a form of studying whether or
- 01:23:30not self-directed or given to you by a
- 01:23:33teacher is not for sake of evaluation at
- 01:23:36the level of okay you know you get an
- 01:23:39exam at the end of a lecture and then
- 01:23:42you do your best to answer those
- 01:23:43questions and then you turn it in and it
- 01:23:46impacts your grade no this is
- 01:23:48about being told or revealing to
- 01:23:51yourself how much you know and don't
- 01:23:53know and then of course being told the
- 01:23:54correct answers so that you can compare
- 01:23:56your answers to the correct answers and
- 01:23:58doing this frequently and ideally very
- 01:24:00soon after being exposed to the material
- 01:24:02that's one of the key things that I keep
- 01:24:04coming back to again and again here um
- 01:24:07because it's something that frankly was
- 01:24:09not done well I was in school um for
- 01:24:12whatever reason and I think that's
- 01:24:14largely because when people hear the
- 01:24:15word testing they think of evaluation
- 01:24:18and if anything at least in the United
- 01:24:20States over the last 30 years but in
- 01:24:22particular over the last 15 years
- 01:24:24there's been this tendency to shift away
- 01:24:26from formal evaluation you know I
- 01:24:28personally believe that one can learn in
- 01:24:30many different styles and many different
- 01:24:32contexts I of course as a university
- 01:24:35Professor um believe that for certain
- 01:24:37topics in particular science and
- 01:24:39medicine and health but other topics as
- 01:24:41well of course that formal rigorous
- 01:24:43coursework is by far the best way to
- 01:24:45learn information for
- 01:24:47me but that regardless of whether or not
- 01:24:50you're learning just from YouTube or
- 01:24:52you're learning from podcasts or you're
- 01:24:53learning from books you're learning from
- 01:24:55the school of life as it were from
- 01:24:57experience that testing as a form of
- 01:25:00studying is absolutely key and gosh
- 01:25:04there's such a beautiful body of
- 01:25:05research in fact I'll link to several
- 01:25:07studies including a review entitled
- 01:25:08testing enhances learning a review of
- 01:25:10the literature as well as a beautiful
- 01:25:13article test enhanced learning uh which
- 01:25:16gets into this and there's a wonderful
- 01:25:18book about this that I'll also provide a
- 01:25:19link to in the show note captions um all
- 01:25:22of course authored by researchers who
- 01:25:24have worked squarely in this field and
- 01:25:26compare the data on testing as a
- 01:25:27studying tool to other forms of studying
- 01:25:30and learning so it's a really impressive
- 01:25:33literature that I do believe we all
- 01:25:35should have known about and that's why
- 01:25:37I'm passing it on to you now now before
- 01:25:40we wrap up I want to make sure that I
- 01:25:41emphasize some of the other key
- 01:25:42components to studying and learning that
- 01:25:45have nothing to do with testing as a
- 01:25:47studying
- 01:25:48tool and those are the role of emotion
- 01:25:53the role of story and the role of what's
- 01:25:57called interleaving now in terms of
- 01:25:59emotion I think we all inherently
- 01:26:01understand that more emotionally Laden
- 01:26:03experiences are remembered more durably
- 01:26:06we tend not to forget them in fact this
- 01:26:08is the basis of things like PTSD
- 01:26:10post-traumatic stress disorder it is the
- 01:26:13reality that one trial learning that is
- 01:26:16exposure to something and never
- 01:26:17forgetting it occurs very readily when
- 01:26:21the thing that we're exposed to is
- 01:26:23negative or has a very heavy negative
- 01:26:27emotional Salient so it could be
- 01:26:29something we read or something we see
- 01:26:31sometimes it's something that happens to
- 01:26:33us you know I I don't like the idea of
- 01:26:35that but this is true your nervous
- 01:26:37system is wired such neuroplasticity is
- 01:26:40such that stressful experiences because
- 01:26:45they deploy such massive amounts of
- 01:26:48adrenaline epinephrine as well as other
- 01:26:51neuromodulators allow very quickly for
- 01:26:54the milu the environment of the neural
- 01:26:56circuits that led up to that experience
- 01:26:59to strengthen their connections with one
- 01:27:01trial so-call one trial learning this is
- 01:27:04why sadly although at the same time from
- 01:27:07an Adaptive perspective we say
- 01:27:10fortunately if you were to step outside
- 01:27:12today and God forbid see somebody get
- 01:27:14hit by a
- 01:27:15car you would remember that chances are
- 01:27:18you would remember that forever now that
- 01:27:20does not mean that the emotional
- 01:27:23components of that memory are
- 01:27:25necessarily going to stay within you
- 01:27:27there are tools for the treatment of
- 01:27:30PTSD such as the different ones that
- 01:27:33come to mind are you know systematic
- 01:27:35exposure therapy where you're reexposed
- 01:27:38to that idea or memory sometimes even
- 01:27:42circumstance with of course the support
- 01:27:44of a trained professional typically a
- 01:27:46psychiatrist or
- 01:27:48psychologist and the emotional load of
- 01:27:50that experience is gradually uncoupled
- 01:27:53from your M Mor of the experience
- 01:27:54there's things like EMDR there are
- 01:27:57pharmacologic approaches some of these
- 01:27:58are combined with the sorts of things
- 01:28:00I've described I've done entire episodes
- 01:28:02about stress and PTSD again you can find
- 01:28:03those at hubman lab.com by putting
- 01:28:05stress PTSD into the search
- 01:28:08function however we know that it is the
- 01:28:12same neuromodulators mainly epinephrine
- 01:28:15and norepinephrine deployed at massive
- 01:28:17amounts in those moments where something
- 01:28:18very stressful happens that allows the
- 01:28:20neural circuits that led up to the
- 01:28:23circumstance as well as the neural
- 01:28:24circuits that encode that visual scene
- 01:28:27and scenes like it or sounds like it to
- 01:28:30be locked in and linked to the stress
- 01:28:32response now what this is really all
- 01:28:35saying is that negative stuff is
- 01:28:37remembered typically the first time and
- 01:28:39every time and very durably over time as
- 01:28:44compared to positive experiences which
- 01:28:46as far as Peak experiences go right
- 01:28:48birth of your first child a wedding a
- 01:28:51wonderful um professional or person
- 01:28:54experience those two can be one trial
- 01:28:56learning and memory but most things that
- 01:28:58we are exposed to are not at those
- 01:29:00extremes either negative or
- 01:29:03positive however we know that any kind
- 01:29:06of story any kind of emotional emphasis
- 01:29:09on material either in the delivery of
- 01:29:11that material but certainly in the way
- 01:29:14that that material is perceived by you
- 01:29:17like getting really excited about
- 01:29:18something you want to learn or thinking
- 01:29:20something's really awful is likely to be
- 01:29:23more readily and stably committed to
- 01:29:25your memory and that's because of these
- 01:29:27neuromodulators like epinephrine and
- 01:29:29norepinephrine but other neuromodulators
- 01:29:31as well that wire those experiences into
- 01:29:33your neural circuits again these
- 01:29:35neuromodulators epinephrine
- 01:29:36norepinephrine we also hear about
- 01:29:37acetycholine dopamine Etc they can
- 01:29:41operate at low levels and sort of
- 01:29:43background levels they can create subtle
- 01:29:47fluctuations and mood focus and
- 01:29:48attention or they can create massive
- 01:29:50shifts in mood focus and attention
- 01:29:52depending on their levels their time and
- 01:29:54much much more Point here is that if
- 01:29:56you're a teacher Andor if you are a
- 01:30:00learner paying attention to your
- 01:30:02internal State as you're trying to learn
- 01:30:03is very key we've all had that teacher
- 01:30:06that lecture that just kind of drones
- 01:30:08things out in monotone if you need to
- 01:30:10learn the material coming out of a
- 01:30:12source like that person or otherwise
- 01:30:14you're going to have to ramp up your
- 01:30:15level of internal attention consciously
- 01:30:18in order to bring about some emotional
- 01:30:20salience some intensity to the way it's
- 01:30:23perceived and you can do that just
- 01:30:24through your own thinking as opposed to
- 01:30:28the situation whether you have a super
- 01:30:30Dynamic teacher who's telling you things
- 01:30:31with wide eyes and perhaps even cracking
- 01:30:33jokes by the way the teachers that crack
- 01:30:35jokes get lower teacher evaluations than
- 01:30:37those that don't crack jokes or swear
- 01:30:39did you know that the teachers that
- 01:30:41crack jokes and swear they're perceived
- 01:30:43as more likable but they get lower
- 01:30:44overall evaluations typically they're
- 01:30:46seen as less professional and therefore
- 01:30:48less good teachers by their students
- 01:30:51that's why I try not to make too many
- 01:30:52jokes or swear in my
- 01:30:55lectures the point being that we all
- 01:30:58have those really wonderful Dynamic
- 01:31:00teachers yes it's much easier to learn
- 01:31:03and remember that material you still
- 01:31:04need to test yourself on it but it's
- 01:31:06much easier to learn that material for
- 01:31:08the very reasons I say it before it's a
- 01:31:10lesser example of more deployment of the
- 01:31:13neuromodulators in you the learner that
- 01:31:15is exposed to that material okay so
- 01:31:18emotion matters so much so that in a
- 01:31:21beautiful review about learning a memory
- 01:31:23from the Great James maau one of The
- 01:31:24Luminaries in modern neuroscience and
- 01:31:26psychology of memory he talked about a
- 01:31:29medieval practice this is pretty wild
- 01:31:31whereby people and kids kids are people
- 01:31:35of course but adults and kids were
- 01:31:37taught information and then thrown
- 01:31:41literally thrown into cold water why to
- 01:31:43deploy adrenaline and consolidate memory
- 01:31:46of the material they were exposed to now
- 01:31:48I know we've covered deliberate cold
- 01:31:50exposure on this podcast before no I'm
- 01:31:53not saying you need to do a cold plunge
- 01:31:54after being exposed to new material but
- 01:31:56guess what they were doing that many
- 01:31:58hundreds of years ago and it makes sense
- 01:32:01logically based on all our understanding
- 01:32:04of the neurobiology underlying things
- 01:32:06like PTSD underlying emotion Laden
- 01:32:09memory formation and consolidation and
- 01:32:12our ability to remember things that were
- 01:32:13emotionally Laden much better than
- 01:32:15things that were less emotionally Laden
- 01:32:17so if you want to take a cold shower
- 01:32:19after learning some material or even
- 01:32:21better testing yourself mentally on that
- 01:32:24material while in a cold shower or cold
- 01:32:26plunge you certainly can just don't stay
- 01:32:28in there too long use best practices if
- 01:32:31you want to know what those best
- 01:32:32practices are for deliberate cold
- 01:32:33exposure you can check out our
- 01:32:35deliberate cold exposure newsletter at
- 01:32:36huberman lab.com it's completely zero
- 01:32:38cost you don't even need to sign up you
- 01:32:40simply go to newsletter in the menu tab
- 01:32:42and you can find that PDF and now
- 01:32:45because you are becoming proficient in
- 01:32:46an understanding of neuroplasticity and
- 01:32:48learning and testing and neuromodulators
- 01:32:49like epinephrine yes drinking caffeine
- 01:32:52will increase your levels of EP nephrine
- 01:32:55not strikingly so but enough that it
- 01:32:58probably helps you learn things a little
- 01:32:59bit better should you drink the coffee
- 01:33:00after listen that's getting a little bit
- 01:33:03too down in the details the most
- 01:33:05important components to learning are
- 01:33:06that you be alert so that you can attend
- 01:33:09so you can pay attention to the material
- 01:33:11you're trying to learn and then testing
- 01:33:13yourself later and of course the other
- 01:33:15component which is getting sufficient
- 01:33:17amounts of great sleep each night and I
- 01:33:19highly recommend doing nsdr I mentioned
- 01:33:22Gap effects before those are very very
- 01:33:25cool I just used another one now and the
- 01:33:29final tool for studying that I believe
- 01:33:31is not discuss enough and is a bit
- 01:33:32counterintuitive so it's a fun one to
- 01:33:34just mention and that perhaps you can
- 01:33:36explore in your own studying and
- 01:33:38learning Adventures is interleaving of
- 01:33:40information this one's kind of wild
- 01:33:42actually turns out that if your
- 01:33:46instructor or you takes information
- 01:33:49about something that they're trying to
- 01:33:51teach you or you're trying to learn
- 01:33:53maybe it's piano know maybe it's
- 01:33:54Neuroscience maybe it's how to learn
- 01:33:56better and every once in a while throws
- 01:33:58in a little anecdote about something
- 01:34:00let's just say or mention something
- 01:34:03about the Olympics or incorporate
- 01:34:07something that seems pseudo random
- 01:34:09because it's not actually related to the
- 01:34:11material you're trying to learn turns
- 01:34:13out that that acts not as a gap in the
- 01:34:16same sense that Gap effects which are
- 01:34:18times in which you do nothing in order
- 01:34:20to get more repetitions of the material
- 01:34:23you just heard in your hippocampus but
- 01:34:25rather those breaks of interleaving
- 01:34:27information not just getting a steady
- 01:34:29barrage like drinking from a fire hose
- 01:34:31of new information from start to finish
- 01:34:34turn out to enhance overall learning
- 01:34:36ability probably we think at a
- 01:34:39mechanistic level because the neural
- 01:34:42circuits are able to generate more
- 01:34:43repetition similar to Gap effects but
- 01:34:46actually in a very interesting way also
- 01:34:50because by injecting other information
- 01:34:53that seems totally unrelated random or
- 01:34:56pseudo random it allows the brain areas
- 01:34:59that are responsible for encoding
- 01:35:01information to take whatever new
- 01:35:03information you're learning and to
- 01:35:05incorporate it with existing knowledge
- 01:35:07or even distantly related knowledge so
- 01:35:09does this mean that you should learn
- 01:35:11math and history in the same lecture
- 01:35:12well I think that might be a bit
- 01:35:14overwhelming kind of like drinking from
- 01:35:15Two Fire hoses here we're talking about
- 01:35:17interleaving challenging information
- 01:35:19that's new to you with little anecdotes
- 01:35:23little bits of information that perhaps
- 01:35:24are new to you but don't require a lot
- 01:35:26of challenge which is of course why
- 01:35:28every once in a while I throw in a
- 01:35:29little anecdote about my Bulldog or
- 01:35:31learning neuroanatomy or something of
- 01:35:33that sort it's not just to provide a
- 01:35:35break it's to provide examples that are
- 01:35:38related but not Central to the material
- 01:35:40that we've been talking about today
- 01:35:41which is all about how to study and
- 01:35:43learn optimally okay so I realize that
- 01:35:47many of you are not students any longer
- 01:35:49although some of you are but in many
- 01:35:52ways we are all students we are all
- 01:35:54constantly being exposed to all sorts of
- 01:35:55information out in the world and
- 01:35:57goodness knows um thank goodness we
- 01:36:00don't remember it all but there is of
- 01:36:02course information that we would like to
- 01:36:03remember that we would really like to
- 01:36:06consolidate in our memory and be able to
- 01:36:08have some Mastery over earlier I said I
- 01:36:11would distinguish between unskilled
- 01:36:12skilled Mastery and virtuosity and I'll
- 01:36:14do that now unskilled of course means
- 01:36:16that we have limited understanding let
- 01:36:18alone um ability to use information
- 01:36:20skilled typically means we know and can
- 01:36:22recognize and use information in basic
- 01:36:25ways or even Advanced ways Mastery
- 01:36:28typically means that we have you know
- 01:36:30close to the full depth of knowledge in
- 01:36:32a given area and that we can use it
- 01:36:34pretty flexibly and virtuosity at least
- 01:36:37my definition of virtuosity is where we
- 01:36:39actually have such Mastery of material
- 01:36:42that we can use it in ways that we still
- 01:36:45don't even know how we can use meaning
- 01:36:48that we can inject elements or we even
- 01:36:51invite elements of uncertainty and kind
- 01:36:53of spontaneity into the use of that
- 01:36:55material here I'm thinking of great
- 01:36:56musicians I'm thinking of great athletes
- 01:36:58where they know all the plays they know
- 01:37:00all the moves it's all scripted into
- 01:37:01their nervous system and they can deploy
- 01:37:03those at any time so they have real
- 01:37:04Mastery but in order to display their
- 01:37:08incredible abilities their virtuosity
- 01:37:11they actively invite in The X Factor the
- 01:37:14uncertainty such that sometimes they
- 01:37:16find themselves playing their instrument
- 01:37:18or singing or performing athletically or
- 01:37:21mathematically or what have you in way
- 01:37:23that even surprise them and that of
- 01:37:26course is a lot to expect of ourselves I
- 01:37:28think most of us would be uh content to
- 01:37:31have skill and Mastery of the things
- 01:37:34that we care about and you know should
- 01:37:36we achieve virtuosity then wonderful but
- 01:37:38one of the main points of today's
- 01:37:40discussion was to arm you with an
- 01:37:41understanding of neuroplasticity in the
- 01:37:44context of studying and learning to
- 01:37:45really understand that so much of
- 01:37:47learning stably and consolidating
- 01:37:50information over time is to offset the
- 01:37:52forgetting process
- 01:37:53and that testing is not just a tool for
- 01:37:56evaluating our knowledge but rather a
- 01:37:57tool for evaluating and reinforcing and
- 01:38:01building our knowledge put differently
- 01:38:03that testing is an excellent tool if not
- 01:38:06the best tool for studying and I think
- 01:38:09that's an important reframe that others
- 01:38:11have brought about and that I really
- 01:38:12want to highlight underline and bold
- 01:38:14face during today's discussion it's one
- 01:38:17that I certainly wish I had applied more
- 01:38:20in my educational trajectory and it's
- 01:38:21one that I plan to deploy further in my
- 01:38:25seeking out of new knowledge in terms of
- 01:38:27the podcast and Neuroscience but in
- 01:38:29other areas of my life as well because
- 01:38:31from the existing literature and
- 01:38:33hopefully from the way it was presented
- 01:38:34to you today you probably realize that
- 01:38:38it is near infinite if not
- 01:38:40infinite that we can apply testing as a
- 01:38:43tool for studying self- testing testing
- 01:38:45of others using testing as a way to
- 01:38:48really probe what we know and don't know
- 01:38:49and to really offset that forgetting
- 01:38:51process and in that sense it is is
- 01:38:53really nicely aligned with what we know
- 01:38:56about
- 01:38:57neuroplasticity and it's also something
- 01:38:59that we can use freely and that you can
- 01:39:01use covertly that you can apply in your
- 01:39:04own seeking out of knowledge and new
- 01:39:06skills of all kinds classroom or
- 01:39:09otherwise if you're learning from and or
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- 01:39:35you'd like me to consider for the hubman
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- 01:39:39comments section on YouTube I do read
- 01:39:41all the comments for those of you that
- 01:39:43haven't heard I have a new book coming
- 01:39:44out it's my very first book it's
- 01:39:46entitled protocols an operating manual
- 01:39:48for the human body this is a book that
- 01:39:50I've been working on for more than 5
- 01:39:51years and that's based on more than 30
- 01:39:53years of research and experience and it
- 01:39:56covers protocols for everything from
- 01:39:58sleep to exercise to Stress Control
- 01:40:01protocols related to focus and
- 01:40:03motivation and of course I provide the
- 01:40:05scientific substantiation for the
- 01:40:07protocols that are included the book is
- 01:40:09now available by pre-sale at protocols
- 01:40:12book.com there you can find links to
- 01:40:14various vendors you can pick the one
- 01:40:16that you like best again the book is
- 01:40:18called protocols an operating manual for
- 01:40:20the human body if you're not already
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- 01:41:01protocol that describes resistance
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- 01:41:05as well as cardiovascular training
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- 01:41:22anybody body thank you once again for
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- 01:41:36[Music]
- Andrew Huberman
- Huberman Lab
- neuroplasticity
- effective learning
- studying
- memory retention
- testing
- focus
- attention
- emotional learning