Logo

    Optimize & Control Your Brain Chemistry to Improve Health & Performance

    Incorporating safe and moderate exposure to sunlight and caffeine into your daily routine can increase dopamine production and motivation, but must be used mindfully following guidelines to avoid harmful effects.

    enJuly 11, 2022

    About this Episode

    In this episode, I explain the biological roles of the four major neuromodulators—dopamine, epinephrine (aka adrenaline), serotonin, and acetylcholine—and describe how these neuromodulators impact a wide variety of mental states and behaviors, including focus, creativity, motivation, drive, learning, alertness, mood, relationships, and feelings of well-being. Then, with that foundational understanding in mind, I describe a potent toolkit of science-supported behavioral, nutrition, and supplementation tools that can be used to increase baseline levels of individual neuromodulators and that can be modified for specific goals. This episode summarizes low-or-no-cost, actionable, science-based tools that can benefit anyone in order to enhance their levels of brain chemicals and improve mental health, physical health, and performance. For the full show notes, visit hubermanlab.com. Thank you to our sponsors AG1 (Athletic Greens): https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/huberman Supplements from Momentous https://www.livemomentous.com/huberman Timestamps (00:00:00) Optimizing Neurochemicals to Improve Health (00:05:30) Sleep & Maintaining Healthy Metabolism (00:09:52) Tools: How to Wake Up Earlier, Night Owls (00:18:58) Sponsors: AG1, LMNT (00:22:05) Nervous System Overview (00:31:32) How Neuromodulators Work  (00:34:24) Baseline Neuromodulator Levels, 3 Daily Phases (00:42:15) Hormones Modulate Neuromodulators (00:52:12) The 4 Major Types of Neuromodulators (01:01:45) Tool Kit 1: Increase Baseline Dopamine & Focus (01:08:52) Tyrosine-rich Foods & Dopamine (01:10:59) Dopamine Supplementation: Mucuna Pruriens, L-tyrosine & Phenylethylamine (01:16:00) Deliberate Cold Exposure & Dopamine (01:21:12) Tool Kit 2: Additional Tips to Increase Dopamine (01:26:10) Tool Kit 3: Increase Epinephrine (Adrenaline) & Alertness (01:34:34) Tool Kit 4: Increase Acetylcholine & Attention/Learning; Choline-rich Foods (01:37:29) Acetylcholine Supplements: Nicotine, Alpha GPC, Huperzine  (01:44:47) Tool Kit 5: Behavior to Increase Focus & Acetylcholine (01:46:56) Tool Kit 6: Behavior to Increase Serotonin & Feelings of Well-being  (01:50:51) Tools: Tryptophan-Rich Foods & Serotonin (01:53:31) Tools: Serotonin Supplements: Cissus Quadrangularis, 5-HTP, Myo-inositol (02:02:14) Use the Neurochemical Toolkit to Meet Individual Goals (02:06:44) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous Supplements, Instagram, Twitter, Neural Network Newsletter Title Card Photo Credit: Mike Blabac Disclaimer

    🔑 Key Takeaways

    • Understanding the chemicals and mechanisms in our brain can lead to better mental and physical health. The four pillars of neurochemistry include focus, relaxation, sleep optimization, and pain management. Recent studies on sleep metabolism can provide actionable information for better sleep.
    • Sleep plays an important role in regulating metabolism, with different sleep states affecting specific pathways related to lipid, fat, and carbohydrate metabolism. Getting enough quality and duration of sleep is critical in optimizing metabolic circuits for human performance and health.
    • By maximizing morning light exposure, consistent sleep-wake times, fixed meal times, limiting caffeine intake, and exercise, people can successfully shift their sleep schedule, leading to improved mood and cognitive function.
    • Create consistent meal times, avoid caffeine and late nap, exercise in the morning, and maximize sunlight exposure to shift sleep schedule earlier. Understanding neurobiology can help optimize brain chemistry for better sleep, health, and performance.
    • By learning to control neuromodulators such as dopamine, epinephrine, serotonin, and acetylcholine, through behavioral tools and supplementation, one can access desired brain and body states, leading to better emotional control and a more fulfilling life.
    • Neuromodulators such as dopamine, serotonin, epinephrine, and acetylcholine work together to create different states of focus, energy, and learning. Their levels vary throughout the day and impact brain functions in time-dependent ways.
    • To optimize brain chemistry, it is important to leverage tools that affect neuromodulators and hormones based on their varying levels throughout the day. Understanding these elements can help achieve short-term optimization.
    • Understanding the collaboration between hormones and neuromodulators in the body can improve mental and physical health. Modulating dopamine and serotonin levels through hormone regulation can have positive effects on mood and libido.
    • By understanding the role of dopamine, epinephrine, and prolactin, individuals can select the right tools to achieve focus, less stress, higher motivation, and better learning. It is important to recognize the complex interactions between these molecules.
    • Understanding the impact of neuromodulators such as serotonin and acetylcholine can help enhance focus, learning, relaxation, and motivation. Maintaining balanced levels of these chemicals is crucial to overall well-being.
    • Incorporating safe and moderate exposure to sunlight and caffeine into your daily routine can increase dopamine production and motivation, but must be used mindfully following guidelines to avoid harmful effects.
    • Limit caffeine intake to early in the day and avoid excess tyrosine intake. Avoid destructive drugs that manipulate dopamine levels and consult a physician before taking prescription drugs or supplements.
    • Besides supplements like Macuna purines, deliberate cold exposure is a potent tool to increase dopamine levels. However, it's important to note that the effectiveness of L-tyrosine and phenylethylamine varies on individual sensitivity.
    • Cold water immersion increases dopamine and epinephrine levels, while excessive light exposure from 10 PM to 4 AM reduces dopamine. Adequate B vitamins, sunlight exposure and a healthy diet are key to maintaining optimal dopamine levels.
    • Increase dopamine levels and receptor efficacy by combining behavior, nutrition, and supplementation while avoiding dopamine suppressors. Adjust tool usage to match circadian rhythms and use epinephrine early in the day for alertness and focus through physical activity and talking.
    • Exercise, caffeine, cyclic hyperventilation, and deliberate cold exposure are potent tools for increasing energy levels by increasing epinephrin transmission and adrenaline. Combining them provides a versatile kit for physical and mental energy.
    • Acetylcholine, released in the brain during states of focus and attention, improves neural circuit precision and increases sensory information reaching consciousness. Boost levels by eating foods high in precursors like beef liver or through safe means like learning, which triggers neuroplasticity.
    • Nicotine can enhance focus but affects individuals differently. Alpha GPC and Huperzine supplements increase acetylcholine levels, but high doses of alpha GPC may increase stroke risk. Garlic can prevent cardiovascular risk. Deliberate visual focus exercises can improve focus, while acetylcholine has impressive effects on cognitive performance in children.
    • Observing or receiving gratitude is the most powerful method to boost serotonin levels in the brain and body. Tryptophan, found in foods like turkey, is an essential amino acid that affects serotonin synthesis, but overeating can cause drowsiness.
    • Eating foods rich in tryptophan, such as milk, oats, cheese, nuts and seeds, chocolate, and certain fruits, can boost mood. While supplements like Cicis quadrangle Doris and 5 HTP can also increase serotonin, individuals should be cautious and consult a healthcare provider first.
    • Consult with a physician before adding or removing supplements or prescription drugs. Behavioral protocols like physical contact, gratitude, and diet can increase serotonin levels and improve mental health. Understanding neuromodulators can aid in addressing health concerns.
    • By understanding the impact of neuromodulators like dopamine, acetylcholine, and serotonin, we can manipulate our neurochemicals with versatile tools, such as nutrition or supplements, to achieve desired states for optimal wellbeing. Customizing protocols in a safe way can help determine appropriate levels for us.

    📝 Podcast Summary

    The four pillars of neurochemistry for optimizing mental and physical health

    Understanding the mechanisms and chemicals in the brain help in optimizing mental health, physical health and performance. There are four major pillars of neurochemistry that allow us to focus, relax, optimize sleep, and work through pain. These pillars comprise a small subset of chemicals that we leverage to effect positive change in our lives. Understanding these pillars will help us navigate the vast landscape of mental health, physical health, and performance tools that are available for us to use. Two recent studies related to sleep in humans show that understanding different forms of metabolism during sleep can help us access better sleep. These studies can provide exciting and actionable information on optimizing sleep.

    Sleep States and Their Effects on Metabolism

    Sleep states regulate more than 50% of all the metabolite features detected in human breath, which can reveal what humans are metabolizing, such as more lipids or more carbohydrate. Transitioning between slow wave sleep, rapid eye movement sleep, and waking affects specific metabolic pathways related to lipid metabolism, fat metabolism, or carbohydrate metabolism. The range of different types of metabolism during sleep may serve to ensure that the specific aspects of metabolism required during wakefulness are working properly. Getting enough sleep, including slow wave sleep and rapid eye movement sleep, is extremely important for optimizing metabolic circuits for human performance and health. Lack of sleep can disrupt glucose metabolism and alter certain forms of fuel utilization during the night and wakefulness. It is important to get sufficient quality and duration of sleep and transition through all the different aspects of fuel utilization.

    Shifting Your Sleep Schedule for Improved Mood and Cognitive Function

    A study published in the Sleep Medicine journal shows that people can shift their sleep schedule by a few hours, and it's not even that challenging to do provided you do the right things. The study found significant improvements in mood and cognitive performance, including reaction times and physical grip strength, among those who regularly slept late and woke up late but shifted to waking up earlier and going to sleep earlier. The interventions used in the study included maximizing outdoor light exposure during morning hours, consistent sleep-wake times, fixed meal times, limiting caffeine intake and exercise. These interventions can help in resetting the late timing of night hours, positively impacting mental and physical health.

    Optimizing Sleep-Wake Schedule through Daily Habits and Neurobiology

    Consistently keeping meal times, avoiding caffeine and napping after 4 PM, exercising in the morning and getting maximal sunlight exposure earlier in the day are some effective ways to shift sleep-wake schedules earlier. This study incorporates many different features, including previous animal studies and human studies, to tackle multiple variables simultaneously. Your nervous system plays an important role in generating everything from sleep to wakefulness and interacts with organs via synaptic communication. Neurons communicate with each other through chemicals, and the chemicals released can make other neurons more or less electrically active. Understanding basic biology can help optimize brain chemistry for better health and performance.

    Understanding Neural Circuits and Neuromodulators for Emotional Control

    Neurons communicate with each other through electricity and chemicals in synapses, which can either excite or inhibit the next neuron, leading to specific behaviors and emotional states. These neural circuits are made up of multiple brain areas that light up in particular sequences, and the chemicals that control which neural circuits are active are called neuromodulators, such as dopamine, epinephrine, serotonin, and acetylcholine. By learning to control these neuromodulators, through behavioral tools and supplementation, one can access desired brain and body states. Understanding the complexity of how the brain works is vital in controlling one's emotions and behaviors, allowing for a more fulfilling life.

    Role of Neuromodulators in Brain Functions and Their Time-Dependent Actions

    Neuromodulators like dopamine, serotonin, epinephrine, and acetylcholine are always present in different levels. They work together to impact certain circuits in the brain and create states of focus, motivation, energy, and learning. The fast actions of these neuromodulators occur on the order of seconds, minutes, or up to an hour, whereas the slower actions occur on the order of hours, days, or even weeks. The levels of neuromodulators vary depending on the time of day or night. From zero to nine hours after waking, dopamine and epinephrin tend to be at their highest levels, called phase one. Then from nine to 16 hours is phase two where dopamine and epinephrin levels subside a bit while serotonin levels start to increase. Phase three is the 17 to 24 hour period where neuromodulator levels are all over the place during sleep.

    Understanding the Basics of Brain Chemistry for Effective Optimization

    To optimize brain chemistry, it is important to understand the backdrop baseline elements of neuromodulators and hormones that vary throughout the day. Dopamine and epinephrine tend to dominate in the early phase one of the day, while serotonin dominates in phase two. Leverage tools that can affect neuromodulators based on the backdrop level of the specific neuromodulator, such as using potent tools for adjusting dopamine and epinephrine levels during the late part of the day. Hormones, like steroid hormones, can also affect brain chemistry by controlling gene expression and altering cell identity. Understanding these elements can help leverage the best tools for optimizing brain chemistry in short durations.

    The Link between Hormones and Neuromodulators for Mental and Physical Health

    Hormones and neuromodulators in the body are closely linked and have both slow and fast actions on cell identity and brain function. Hormones like testosterone tend to collaborate with dopamine and cortisol with epinephrine, while oxytocin and prolactin tend to collaborate with serotonin. Acetylcholine works on its own, but its effects can also be impacted by hormones. Increasing testosterone and estrogen levels can have positive effects on feelings of wellbeing and libido by modulating dopamine and serotonin levels. Understanding the relationship between hormones and neuromodulators is important for improving mental and physical health. Prolactin tends to reduce dopamine levels, while elevating serotonin.

    Understanding the Role of Neuromodulators for Achieving Desired States of Body and Mind

    Understanding the role of different neuromodulators such as dopamine and epinephrine can help in creating a kit of tools that can be used to achieve desired states of body and mind. Dopamine is responsible for motivation, craving, and pursuit of goals whereas epinephrine is responsible for increasing energy and state of readiness. Both these molecules are closely related and can collaborate with each other. Prolactin tends to decrease the effects of dopamine. Knowing about these neuromodulators and their interactions can help in selecting the right tools, be it pharmacologic, behavioral or supplementation based, to achieve focus, less stress, higher motivation, and better learning. It is important to understand that none of us have designed these circuits and they work in a seesaw fashion.

    The Role of Serotonin and Acetylcholine in Brain and Body.

    Neuromodulators, such as serotonin and acetylcholine, have significant impact on our brain and body states. Serotonin promotes contentment and relaxation, while acetylcholine is associated with focus and learning. Levels of these neuromodulators matter, as high levels of serotonin can lead to sedation and low levels can cause agitation and stress. Acetylcholine can be released during calm states, such as in the case of a person's hyper-focus on a newborn baby. Understanding the impact of neuromodulators and how to increase dopamine levels above baseline can help individuals be more motivated, pursue goals, have more energy, and focus better.

    How Sunlight and Caffeine Increase Dopamine Production and Motivation

    Sunlight exposure early in the day and regular ingestion of caffeine at appropriate levels can increase the potency of dopamine production. Increasing the number of dopamine receptors in the brain can lead to increased motivation, mood, and pursuit of life goals. However, it is important to note that both tools must be used safely and in moderation to avoid harmful effects like skin burn, blindness, or adverse caffeine side effects. It is crucial to understand the natural behavioral tools for increasing dopamine and to incorporate them into your daily routine consistently. These tools are science-backed and versatile but must be applied mindfully following guidelines to ensure benefits.

    Managing Caffeine and Dopamine Levels for Better Sleep and Focus.

    Limit caffeine intake early in the day and avoid drinking it past 2 PM or 4 PM. Too much caffeine disrupts the architecture of sleep and can be harmful. For most people, anywhere from 100 to 400 milligrams of caffeine is going to have this effect. Tyrosine-rich foods increase dopamine levels and improve mood, motivation and focus. Avoid the cheese effect caused by excess tyrasine if taking drugs that manipulate dopamine pathway. Bad drugs like cocaine and methamphetamine that increase dopamine levels are destructive and should be avoided. Prescription drugs like Ritalin, Adderall, Vyvanse, Modafinil, and armodafinil require a prescription and should be taken in consultation with a physician. There are supplements that can very potently increase dopamine levels, but talk to a knowledgeable physician before adding or removing anything from your supplementation protocols.

    Different ways to increase dopamine levels in the brain

    Supplements like Macuna purines can increase dopamine, but may lead to a substantial crash afterwards. L-tyrosine and phenylethylamine can also increase dopamine, but their effectiveness varies depending on the individual's sensitivity and natural baseline levels of dopamine. Deliberate cold exposure is the most potent behavioral tool for increasing dopamine in a sustained way. It has been shown to cause long sustained increases in dopamine and epinephrin in the brain and body. Although colder water temperatures are more effective at increasing dopamine, one does not need to endure two hours in 60°F water to achieve this benefit.

    Harnessing Dopamine Boosts with Simple Practices

    Exposure to cold water for as short as 30 seconds can lead to long-lasting increases in dopamine and epinephrine. One can use a cold shower instead of ice floating in the bath, but the temperature should be safe yet uncomfortable. The ideal way to evoke dopamine and epinephrine release is through cold water immersion. Sufficient amounts of B vitamins are necessary to keep prolactin levels in check and not quash dopamine in the system. Excessive bright light exposure to the eyes between 10 PM to 4 AM or phase three of the circadian cycle can reduce dopamine levels and activate a neural circuit. Therefore, it is essential to maintain dopamine baseline through certain strategies like sunlight exposure and proper dietary intake.

    Boosting Dopamine Levels and Epinephrine for Increased Energy and Focus

    To increase dopamine levels and receptor efficacy, use a combination of behavior, nutrition, and supplementation. Avoid things that suppress dopamine, such as bright light exposure and elevated prolactin. Dopamine levels are lower later in the day, so adjust your use of tools accordingly. Epinephrin increases energy and the desire to move, but many people associate it with stress. However, increasing epinephrin early in the day can help with alertness and focus. Physical activity, even talking, increases epinephrin levels. Your kit of tools is highly individual and can be adjusted depending on your circumstances.

    Tools for Increasing Energy Levels

    Exercise, caffeine, cyclic hyperventilation, and deliberate cold exposure are potent tools for increasing epinephrin and thereby energy levels. Exercise increases epinephrin transmission from locus coeruleus and adrenaline from the adrenals. Caffeine increases epinephrin and limit sleepiness if taken 90-120 minutes after waking. Cyclic hyperventilation and deliberate cold exposure increase adrenaline and make one more alert, energized, and wide-eyed. However, cyclic hyperventilation may cause agitation to people with anxiety or prone to panic attacks. While there are no foods to increase epinephrin, foods that contain tyrasine increase dopamine; dopamine is the molecule that is synthesized into epinephrin. Thus, combining these tools provides a versatile kit for increasing physical and mental energy.

    How Acetylcholine Affects Attention and Learning in the Brain

    Acetylcholine is a neuromodulator associated with states of focus, attention, and learning. It is released from two major brain sites, nucleus basalis and the back of the brain, which promote the synthesis of more precise neural circuits. The brain filters sensory information and acetylcholine increases the extent to which visual and auditory information reach consciousness. To increase acetylcholine levels, one can eat foods that contain precursors like beef liver, eggs, chicken, mushrooms, and kidney beans. Supplementation with molecules like nicotine can also increase acetylcholine, but it is not recommended due to addiction and other negative health impacts. Increasing acetylcholine levels before and during learning can help retain information and trigger neuroplasticity.

    Boosting focus with supplements and tools

    Nicotine can enhance focus and cognitive performance, but it affects people differently. Some individuals are sensitive to ingested nicotine and may feel terrible after taking it, while others feel fine. Alpha GPC and Huperzine supplements increase acetylcholine levels, which can enhance focus. However, taking high doses of alpha GPC chronically over time may increase the risk of stroke. Taking 600 milligrams of garlic alongside alpha GPC can prevent an increase in TMAO levels that are sometimes associated with increased cardiovascular risk. Behavioral tools like deliberate visual focus exercises can also enhance focus by increasing the amount of acetylcholine transmission in particular neural circuits. The cognitive and performance effects of acetylcholine are impressive in children, and protocols are being actively deployed in schools in China and elsewhere.

    Behavioral, Nutritional, and Supplementation Tools to Increase Serotonin

    Behavioral tools, nutritional tools and supplementation tools can modulate serotonin system, leading to increases in feelings of wellbeing in positive ways. Observing others giving and receiving gratitude is the most potent way to increase serotonin in the brain and body while receiving not giving gratitude has the most potent effects on increasing serotonin and activity of the brain circuits involving serotonin. Amino acid tryptophan is upstream of serotonin synthesis and enriched in tryptophan containing foods like white meat turkey, that can lead to net increases in the amount of serotonin available in the brain and body. However, overeating can also cause sleepiness as there is a diversion of blood away from other tissues, making you feel sleepy.

    Foods and supplements that can increase serotonin levels

    Eating foods rich in tryptophan can increase serotonin levels in the body, which may improve overall mood and wellbeing. Some of these foods include milk, oats, cheese, nuts and seeds, chocolate, and certain fruits. While supplements like Cicis quadrangle Doris and 5 HTP can also increase serotonin levels, individuals need to be cautious and cycle their use as the data on their effectiveness and safety is limited. Another molecule that can increase serotonin levels is myo-inositol, which has been explored for its potential in treating anxiety and improving sleep. However, individuals should note that sensitivity to these supplements varies and they should consult with a healthcare provider before trying them out.

    Myo-inositol, Serotonin, and Behavioral Protocols for Mental Health.

    Myo-inositol is a supplement that has been explored for the treatment of bipolar disorder, migraine, ADHD, and for increasing serotonin. However, high doses of myo-inositol can cause gastric discomfort and sedative effects. It is important to consult with a physician before adding or removing anything from your drug protocol or prescription protocol. Apart from supplements, behavioral protocols such as physical contact, cuddling, holding hands, receiving and observing gratitude can increase serotonin levels. It is also important to have sufficient baseline levels through a balanced diet and regular behaviors, and only use supplementation or prescription drugs when appropriate. Understanding these neuromodulators - dopamine, epinephrine, acetylcholine, and serotonin - can provide a framework to address various health concerns.

    Understanding Neuromodulators and Their Impact on Mental and Physical Performance

    When it comes to mental and physical performance and overall wellbeing, we are dealing with potent neuromodulators in our brain and body. There are no simple tests to know our dopamine or serotonin levels, but we can use versatile tools from nutrition, supplementation, or prescription drugs to manipulate our neurochemical ingredients to achieve desired states. Different neuromodulators like dopamine, acetylcholine, or serotonin put us into different mental and physical states. Understanding how protocols work and how they tap into these major neuromodulator systems can help us gain intuition and customize these protocols for our own wellbeing. Experimenting with these tools in a safe way can help us figure out what levels of these neuromodulators are appropriate and necessary for us.

    Recent Episodes from Huberman Lab

    Dr. James Hollis: How to Find Your True Purpose & Create Your Best Life

    Dr. James Hollis: How to Find Your True Purpose & Create Your Best Life
    In this episode, my guest is Dr. James Hollis, Ph.D., a Jungian psychoanalyst, renowned educator and author on finding and pursuing one’s unique purpose. Dr. Hollis is also an expert in the psychology of relationships and healing from trauma. We discuss how early family dynamics and social context create patterns of both adaptive and maladaptive behavior and internal narratives that, when examined, lead to better choices and a deeply fulfilling existence. We discuss discovering your unique self-identity and purpose through specific practices of reflection, meditation and conversations with others. We also discuss self-perception and the evolution of roles within marriages, parent-child relationships, and work. Throughout the episode, Dr. Hollis provides both basic knowledge and practical tools to help us assess ourselves and better understand who we are and what we really want in careers, relationships of all kinds, and society. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Mateína: https://drinkmateina.com/huberman Joovv: https://joovv.com/huberman BetterHelp: https://betterhelp.com/huberman Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Dr. James Hollis 00:02:14 Sponsors: Mateina, Joovv & BetterHelp 00:05:57 Self, Ego, Sense of Self 00:13:59 Unconscious Patterns, Blind Spots, Dreams; Psyche & Meaning 00:21:56 Second Half of Life, Purpose, Depression 00:25:37 Sponsor: AG1 00:27:08 Tool: Daily Reflection; Crisis 00:31:47 Families & Children, Permission & Burdens 00:37:27 Complex Identification, Self-Perception; Social Media & Borderline 00:41:55 Daily Stimulus Response, Listening to the Soul 00:45:40 Exiting Stimulus-Response, Loneliness, Burnout 00:51:19 Meditation & Perception, Reflection 00:54:58 Sponsor: Waking Up 00:56:15 Recognizing the “Shadow” & Adulthood 01:02:48 Socialization; Family & Life Journey 01:09:04 Relationships & “Otherness”, Standing Your Ground 01:15:51 Marriage, “Starter Marriages” & Evolution; Parenting 01:19:37 Shadow Issues, Success & External Reward, Personal Growth 01:27:59 Men, Alcohol, “Stoic Man”, Loneliness, Fear & Longing 01:37:33 Women & Men, Focused vs. Diffuse Awareness; Male Rite of Passage 01:44:31 Sacrifice, Relationships; Facing Fears 01:48:20 Therapy, “Abyss of the Self”, Repeating Patterns & Stories 01:55:17 Women, Career & Family, Partner Support; Redefining Roles 02:01:40 Pathology & Diagnosis, Internet 02:07:05 Life, Suffering & Accountability, “Swamplands” & Task 02:11:32 Abuse & Recovery of Self, Patience, Powerlessness 02:14:11 Living a Larger Life; “Shut Up, Suit Up, Show Up” 02:17:49 Life Stages; Despair & Integrity Conflict 02:25:00 Death, Ego, Mortality & Meaning 02:38:07 Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Social Media, Neural Network Newsletter Disclaimer
    Huberman Lab
    enMay 13, 2024

    GUEST SERIES | Dr. Matt Walker: The Science of Dreams, Nightmares & Lucid Dreaming

    GUEST SERIES | Dr. Matt Walker: The Science of Dreams, Nightmares & Lucid Dreaming
    This is episode 6 of a 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley and a leading public educator on sleep for mental and physical health, learning and human performance. In this episode, we discuss dreaming, including the biological mechanism of dreams, what dreams mean and their role in daytime life.  We explore how dreams can enhance our creativity and emotional well-being and help us resolve various challenges and dilemmas. We discuss how to remember and interpret your dreams and the abstractions/symbols frequently present in dreams. We also discuss nightmares and therapies to treat reoccurring nightmares. We explain what lucid dreaming is and if there are benefits or drawbacks to this type of dreaming. Dr. Walker also answers frequently asked audience questions and discusses snoring, body position, sleep supplements, sleep challenges due to aging, menopause, stopping racing thoughts, and how to fall back asleep if you wake in the middle of the night.  For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman BetterHelp: https://betterhelp.com/huberman LMNT: https://drinklmnt.com/huberman Helix Sleep: https://helixsleep.com/huberman WHOOP: https://www.join.whoop.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Dreaming 00:01:13 Sponsors: BetterHelp, LMNT & Helix Sleep 00:05:06 Dreams & REM Sleep 00:12:20 Evolution of REM Sleep, Humans 00:17:13 REM Sleep & PGO Waves; Dreams & Brain Activity 00:24:26 Dreams, Images & Brain Activity; Sleepwalking & Sleep Talking 00:30:51 Sponsor: AG1 00:32:04 Dream Benefits, Creativity & Emotional Regulation; Challenge Resolution 00:41:27 Daily Experience vs. Dreaming, Emotions 00:45:08 Dream Interpretation & Freud, Dream Relevance 00:52:59 Abstractions, Symbols, Experience & Dreams; “Fuzzy Logic” 01:00:28 Sponsor: Whoop 01:01:36 Nightmares; Recurring Nightmares & Therapy 01:11:08 Targeted Memory Reactivation, Sounds & Nightmares 01:15:38 Odor, Paired Associations, Learning & Sleep 01:18:53 Fear Extinction, Memory & Sleep; Tool: Remembering Dreams 01:25:38 Lucid Dreaming, REM Sleep, Paralysis 01:32:33 Lucid Dreaming: Benefits? Unrestorative Sleep? 01:44:07 Improve Lucid Dreaming 01:49:30 Tool: Negative Rumination & Falling Asleep 01:53:41 Tools: Body Position, Snoring & Sleep Apnea; Mid-Night Waking & Alarm Clock 01:58:43 Sleep Banking?; Tool: Falling Back Asleep, Rest 02:05:53 Tool: Older Adults & Early Waking; Sleep Medications 02:11:25 Tool: Menopause & Sleep Disruption, Hot Flashes 02:15:06 Remembering Dreams & Impacts Sleep Quality? 02:18:32 Tool: Sleep Supplements 02:26:48 Tool: Most Important Tip for Sleep 02:30:56 Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    Dr. Casey Means: Transform Your Health by Improving Metabolism, Hormone & Blood Sugar Regulation

    Dr. Casey Means: Transform Your Health by Improving Metabolism, Hormone & Blood Sugar Regulation
    In this episode, my guest is Dr. Casey Means, M.D., a physician trained at Stanford University School of Medicine, an expert on metabolic health and the author of the book, "Good Energy." We discuss how to leverage nutrition, exercise and environmental factors to enhance your metabolic health by improving mitochondrial function, hormone and blood sugar regulation.  We also explore how fasting, deliberate cold exposure and spending time in nature can impact metabolic health, how to control food cravings and how to assess your metabolic health using blood testing, continuous glucose monitors and other tools.  Metabolic dysfunction is a leading cause of chronic disease, obesity and reduced lifespan around the world. Conversely, improving your mitochondrial and metabolic health can positively affect your health span and longevity. Listeners of this episode will learn low- and zero-cost tools to improve their metabolic health, physical and mental well-being, body composition and target the root cause of various common diseases. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Maui Nui Venison: https://mauinuivenison.com/huberman  Eight Sleep: https://eightsleep.com/huberman  AeroPress: https://aeropress.com/huberman  InsideTracker: https://insidetracker.com/huberman  Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Dr. Casey Means 00:02:18 Sponsors: Maui Nui, Eight Sleep & AeroPress 00:06:32 Metabolism, Metabolic Dysfunction, Medicinal Blindspot 00:14:17 Trifecta of Bad Energy 00:24:02 Western Living, United States, Specialization & Medicine 00:27:57 Insulin Resistance, Tool: Mitochondrial Capacity & Exercise 00:33:33 Sponsor: AG1 00:35:03 Tools: Walking & Glucose; Frequent Movement 00:44:25 Tools: Exercises to Improve Mitochondrial Capacity; Desk Treadmill 00:51:18 Soleus Push-Ups & Fidgeting, Non-Exercise Activity Thermogenesis (NEAT) 00:57:14 Sponsor: InsideTracker 00:58:21 Tool: Blood Test Biomarkers, Vital Signs & Mitochondrial Function 01:11:16 Navigate Medical System & Blood Tests, Consumer Lab Testing 01:16:46 Tool: Environmental Factors; Food, Life as a Process 01:21:58 Tool: Ultra-Processed vs. Real Food, Obesity, Soil & Micronutrients 01:32:03 Ultra-Processed Foods: Brain & Cellular Confusion 01:39:10 Tools: Control Cravings, GLP-1 Production, Microbiome Support 01:51:42 Ozempic, GLP-1 Analogs; Root Cause & Medicine 02:00:54 Tool: Deliberate Cold & Heat Exposure, Brown Fat 02:07:27 Tool: Intermittent Fasting & Metabolic Flexibility; Insulin Sensitivity 02:17:03 Tool: Continuous Glucose Monitors (CGMs) & Awareness, Glucose Spikes 02:24:34 Tool: CGMs, Glycemic Variability, Dawn Effect, Individuality 02:33:10 Sleep; Continuous Monitoring & Biomarkers 02:37:39 Mindset & Safety, Stress & Cell Danger Response 02:44:04 Tool: Being in Nature, Sunlight, Fear 02:54:44 Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Social Media, Neural Network Newsletter Disclaimer

    GUEST SERIES | Dr. Matt Walker: Improve Sleep to Boost Mood & Emotional Regulation

    GUEST SERIES | Dr. Matt Walker: Improve Sleep to Boost Mood & Emotional Regulation
    This is episode 5 of our 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley and the host of The Matt Walker Podcast. In this episode, we explain the connection between sleep and mood, emotional regulation and mental well-being.  We explain the role of rapid eye movement (REM) sleep in processing emotions and emotional memories and why sleep deprivation causes agitation, impulsivity and emotional reactivity.  We also discuss why sleep disruption is a hallmark feature of PTSD, anxiety, depression, suicidality, and other psychiatric conditions.  We explain protocols for improving REM sleep and other sleep phases in order to harness the therapeutic power of quality sleep to feel calmer and emotionally restored. This episode describes various actionable tools to improve sleep for those struggling with mental health or mood and those wanting to bolster their overall state and well-being.  The next episode in this special series explores dreams, including lucid dreaming, nightmares and dream interpretation. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman LMNT: https://drinklmnt.com/huberman BetterHelp: https://betterhelp.com/huberman InsideTracker: https://insidetracker.com/huberman  Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Sleep & Mental Health (00:01:09) Sponsors: Eight Sleep, LMNT & BetterHelp (00:05:14) Emotions & Sleep, Amygdala (00:17:27) Emotional Memory & Sleep (00:25:48) “Overnight Therapy” & REM Sleep, Noradrenaline (00:29:13) Sponsor: AG1 (00:30:27) Sleep to “Remember & Forget”, Trauma; REM Sleep (00:38:27) Hinge Analogy; Motivation, Impulsivity & Addiction (00:47:08) Tool: Improve REM Sleep, Social Jet Lag, Alcohol & THC, Addiction (00:56:18) Sponsor: InsideTracker (00:57:23) Post-Traumatic Stress Disorder (PTSD) & REM Sleep (01:06:53) Noradrenaline & REM Sleep, PTSD & Prazosin (01:09:40) Addiction, Non-Sleep Deep Rest (NSDR); Liminal States (01:16:46) Anxiety & Sleep, Mood vs. Emotions (01:23:50) Deep Non-REM Sleep & Anxiety, Sleep Quality (01:28:51) Tool: Improve Deep Non-REM Sleep, Temperature; Alcohol (01:34:56) Suicidality & Sleep, Pattern Recognition; Nightmares (01:46:21) Depression, Anxiety & Time Context (01:51:24) Depression, Too Much Sleep?; REM Changes & Antidepressants (01:57:37) Sleep Deprivation & Depression (02:01:34) Tool: Circadian Misalignment & Mental Health, Chronotype (02:04:05) Tools: Daytime Light & Nighttime Darkness; “Junk Light” (02:13:04) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    AMA #17: Making Time for Fitness, Top Sleep Tools & Best Learning Strategies

    AMA #17: Making Time for Fitness, Top Sleep Tools & Best Learning Strategies
    Welcome to a preview of the 17th Ask Me Anything (AMA) episode, part of Huberman Lab Premium. Huberman Lab Premium was launched for two main reasons. First, it was launched in order to raise support for the main Huberman Lab podcast — which will continue to come out every Monday at zero-cost. Second, it was launched as a means to raise funds for important scientific research. A significant portion of proceeds from the Huberman Lab Premium subscription will fund human research (not animal models) selected by Dr. Huberman, with a dollar-for-dollar match from the Tiny Foundation. Read our Annual Letter 2023. If you're an existing Premium member, you can login to access the full episode. If you're not a member, you can join Huberman Lab Premium to enjoy exclusive content, including monthly Ask Me Anything (AMA) episodes, AMA transcripts, podcast episode transcripts, early access to live events and help advance human scientific research. Resources Foundational Fitness Protocol Timestamps (00:00:00) Introduction to AMA #17 (00:00:14) Exciting Announcement (00:02:16) Diving Into the Foundational Fitness Protocol (00:09:37) Flexibility in Your Fitness Routine (00:17:12) Optimizing Workout Times & Prioritizing Health (00:23:31) Closing Thoughts & Huberman Lab Premium Benefits In the full AMA episode, we discuss: Periodization & the Philosophy of Fitness Unlocking the Secrets of Sleep: Insights & Tools Chronotypes and Personalized Sleep Strategies The QQRT Formula: Quantity, Quality, Regularity & Timing of Sleep Exploring Naps & Non-Sleep Deep Rest (NSDR) Effective Learning & Note-Taking Strategies The Power of Teaching & Self-Testing in Learning Title Card Photo Credit: Mike Blabac Disclaimer

    Protocols to Strengthen & Pain Proof Your Back

    Protocols to Strengthen & Pain Proof Your Back
    In this episode, I explain how to strengthen and build a stable, pain-free back and how to reduce or eliminate existing back pain. I explain the anatomy and physiology of the spinal cord and vertebrae, intervertebral disks and nerve pathways, and the abdominal and back muscles that together can be leveraged to stabilize the back.  Then, I describe protocols: “McGill’s Big 3” exercises, a highly effective psoas stretch, abdominal stabilization, breathing techniques, and protocols to reinforce essential supports for the back, including the neck, pelvis, feet, and toes.  I also explain how you can reduce and potentially eliminate back pain and sciatica using a specific type of bar hang, “cobra push-ups,” medial-glute strengthening exercises, and more.  Back pain greatly impedes one’s ability to enjoy daily activities; this episode provides zero-cost, minimal time-investment protocols to improve your back strength and stability and allow you to move through life pain-free and with ease and mobility.  For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman AeroPress: https://aeropress.com/huberman Joovv: https://joovv.com/huberman Waking Up: https://wakingup.com/huberman Plunge: https://plunge.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Back Health (00:03:47) Sponsors: AeroPress, Joovv & Waking Up (00:07:57) Back Anatomy: Spine, Vertebrae, Spinal Cord (00:12:07) Spinal Cord & Nerves; Herniated Discs (00:19:50) Build Strong Pain-Free Back; Bulging Discs (00:24:26) Back Pain & Professional Evaluation; Tool: Spine Self-Assessment  (00:34:58) Sponsor: AG1 (00:36:29) Tool: McGill Big 3 Exercises, Curl-Up (00:44:40) Tool: McGill Big 3 Exercises, Side Plank (00:53:13) Tool: McGill Big 3 Exercises, Bird Dog; Back Pain (01:04:10) Sponsor: Plunge (01:05:37) Tool: Back Pain & Oreo Analogy, Bar Hang (01:10:34) Time & Back Pain; Tool: Reversing Disc Herniation, Cobra Push-Ups  (01:21:28) Sciatica, Referred Pain, Herniated Disc (01:24:21) Tool: Improve Spine Stability, Strengthen Neck (01:29:23) Tools: Strengthen Feet, Toe Spreading (01:34:35) Tools: Belly Breathing; Stagger Stance (01:42:03) Tools: Relieve Low Back Pain, Medial Glute Activation; Rolled Towel (01:50:59) Tool: Psoas Stretching (01:57:00) Tool: Back Awareness; Strengthen & Pain-Proof Back (02:05:49) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    GUEST SERIES | Dr. Matt Walker: Using Sleep to Improve Learning, Creativity & Memory

    GUEST SERIES | Dr. Matt Walker: Using Sleep to Improve Learning, Creativity & Memory
    This is episode 4 of a 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley, and author of the best-selling book "Why We Sleep." In this episode, we discuss the relationship between sleep, learning and creativity.  We explain why and how sleep before and after a learning bout can improve memory and performance for both cognitive tasks and physical skills. We also discuss how to use time learning and sleep, how to use naps, non-sleep deep rest states, and caffeine to optimize learning, and the mechanisms for sleep and memory consolidation.  We also explain the critical role that sleep plays in creativity and one's ability to discover novel solutions to challenges and problems.  This episode is filled with actionable information on using sleep to enhance skill learning and improve memory and creativity.  The next episode in this guest series explains how sleep benefits emotional regulation and mental health.  For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Helix Sleep: https://helixsleep.com/huberman  WHOOP: https://join.whoop.com/huberman  Waking Up: https://wakingup.com/huberman  InsideTracker: https://insidetracker.com/huberman  Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Sleep & Learning (00:00:59) Sponsors: Helix Sleep, Whoop & Waking Up (00:05:48) Learning, Memory & Sleep (00:09:32) Memory & Sleep, “All-Nighters”, Hippocampus (00:13:46) Naps & Learning Capacity (00:16:59) Early School Start Times, Performance & Accidents (00:26:38) Medical Residency & Sleep Deprivation (00:29:35) Sponsor: AG1 (00:30:49) Tool: Sleep Before Learning; Cramming Effect (00:35:09) Tools: Caffeine; Timing Peak Learning; “Second Wind” (00:44:25) Memory Consolidation in Sleep (00:55:07) Sleepwalking & Talking; REM-Sleep Behavioral Disorder (01:00:16) REM Sleep Paralysis, Alcohol, Stress (01:07:41) Sponsor: InsideTracker (01:08:46) Skills, Motor Learning & Sleep (01:17:03) Tool: Timing Sleep & Learning, Skill Enhancement (01:20:00) Naps; Specificity & Memory Consolidation, Sleep Spindles (01:27:21) Sleep, Motor Learning & Athletes; Automaticity (01:34:10) Can Learning Improve Sleep? (01:39:13) Tool: Exercise to Improve Sleep; Performance, Injury & Motivation (01:44:38) Pillars of Health; Dieting & Sleep Deprivation (01:49:35) Performance & Poor Sleep, Belief Effects, “Orthosomnia” (01:57:03) “Overnight Alchemy”, Sleep & Novel Memory Linking (02:05:58) Sleep & Creativity (02:11:09) Tools: Waking & Technology; Naps; “Sleep on a Problem” (02:20:51) Creative Insight & Sleep (02:26:18) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    Dr. Bonnie Halpern-Felsher: Vaping, Alcohol Use & Other Risky Youth Behaviors

    Dr. Bonnie Halpern-Felsher: Vaping, Alcohol Use & Other Risky Youth Behaviors
    In this episode, my guest is Dr. Bonnie Halpern-Felsher, PhD, FSAHM. She is a professor of pediatrics and adolescent medicine and a developmental psychologist at Stanford University School of Medicine. Dr. Halpern-Felsher is a world expert in adolescent decision-making and risk-taking behaviors. She explains the huge increase in vaping (e-cigarettes) by young people. She explains why vaping nicotine and cannabis is particularly dangerous to the developing brain. We discuss the rise in vaping addiction, the unique social pressures and social media influences faced by youth that make quitting challenging, and interventions to aid them in quitting or reducing use. We also discuss the role of technology and social media. And, the use of alcohol, nicotine pouches, fentanyl, and other risky behaviors that adolescents face now. This episode should interest parents, teachers, coaches, teens, and families. It covers the current youth substance use landscape and also covers resources and ways to quit these addictive behaviors.  For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Use Ask Huberman Lab, our new AI-powered platform, for a summary, clips, and insights from this episode. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman  Mateina: https://drinkmateina.com/huberman  LMNT: https://drinklmnt.com/huberman  Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Dr. Bonnie Halpern-Felsher (00:01:40) Sponsors: Eight Sleep, Mateina & LMNT  (00:05:38) Adolescence (00:09:19) Household Conflict, Parents; Smart Phones (00:12:35) Smart Phones & Social Media (00:18:25) Vaping, E-Cigarettes, Nicotine & Cannabis (00:23:46) Adolescent Nicotine Use: Marketing, Flavors (00:30:41) Sponsor: AG1 (00:32:13) Nicotine Initiation, Freebase vs. Salt-Based Nicotine, Concentration (00:41:35) Addiction & Withdrawal; E-Cigarette Access (00:48:48) Vaping Health Hazards, Aldehydes, Flavors (00:56:32) Sponsor: Waking Up (00:57:48) “Just Say No”, Adolescent Defiance (01:04:21) Cannabis & Potency, Blunts, E-Cigarette Combinations (01:10:30) Psychosis, THC & Adolescence (01:14:11) Quitting Nicotine & Cannabis; Physical & Social Withdrawal Symptoms (01:23:05) Social Pressures, Quitting Vaping, Environment Concerns (01:30:08) Teen Activities, Social Media, Autonomy (01:36:28) Risky Behaviors, Alcohol, Driving, Sexual Behavior (01:43:27) International E-Cigarette Use, Regulation (01:46:10) Nicotine Pouches, Health Risks; Tolerance (01:53:25) Tools: Vaping Interventions, Decision Making, Harm Reduction (02:02:37) Fentanyl, Drug Testing, Recreational Drug Use (02:13:45) Tool: Organic Conversations & Risky Behavior (02:17:20) Long-Term Goals & Teens; Vaping, Pornography & Teens (02:24:08) Mental Health Crisis & Substance Use (02:29:11) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer

    LIVE EVENT Q&A: Dr. Andrew Huberman at the Sydney Opera House

    LIVE EVENT Q&A: Dr. Andrew Huberman at the Sydney Opera House
    Recently I had the pleasure of hosting a live event in Sydney, Australia. This event was part of a lecture series called The Brain Body Contract. My favorite part of the evening was the question and answer period, where I had the opportunity to answer questions from the attendees of each event. Included here is the Q&A from our event at the Sydney Opera House. Sign up to get notified about future events: https://www.hubermanlab.com/events Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman Timestamps (00:00:00) Introduction (00:00:15) Live Event Recap: The Brain Body Contract (00:00:36) Sponsor: AG1 & Eight Sleep (00:02:50) The Power of Mindset on Stress (00:05:23) David Goggins: A Case Study in Resilience (00:09:59) Exploring Time Perception & Frame Rate (00:18:20) Jet Lag Protocol: Adjusting to New Time Zones (00:26:44) The Science of Neuroplasticity (00:26:49) The Transformative Power of Psychedelics (00:29:26) Exploring Psilocybin & MDMA: Personal Experiences & Insights (00:36:12) The Science of Sleep: How Temperature Affects It (00:39:38) Understanding Stress Response & Habituation (00:41:20) Personal Anecdotes (00:47:00) Finding Your Passion: Advice for the Youth (00:51:20) Closing Thoughts & Gratitude Disclaimer

    GUEST SERIES | Dr. Matt Walker: How to Structure Your Sleep, Use Naps & Time Caffeine

    GUEST SERIES | Dr. Matt Walker: How to Structure Your Sleep, Use Naps & Time Caffeine
    This is episode 3 of a 6-part special series on sleep with Dr. Matthew Walker, Ph.D., a professor of neuroscience and psychology at the University of California, Berkeley, and leading public educator about the role of sleep in health, disease and performance.  We explain how our sleep architecture changes as we age. We also cover how childhood development and aging affect sleep biology and needs. We also discuss whether polyphasic sleep (multiple short sleep periods) is beneficial.  Then, we discuss naps, including their positive benefits, individual variability, those who should not nap, and alternative rest states like non-sleep deep rest. Dr. Walker shares protocols to optimize nap duration, timing and effectiveness. We also explore the effects of caffeine on sleep and other health aspects, as well as the optimal timing for caffeine intake. This episode describes many actionable science-based tools for optimizing sleep, naps and caffeine use for better health and performance. The next episode in this special series explores the relationship between sleep, memory, and creativity. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman BetterHelp: https://betterhelp.com/huberman LMNT: https://drinklmnt.com/huberman Waking Up: https://wakingup.com/huberman Eight Sleep: https://eightsleep.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Sleep Structure (00:01:29) Sponsors: BetterHelp, LMNT & Waking Up (00:05:42) Sleep Phases & Lifespan (00:11:58) Sleep Stages & Lifespan, Sleep Paralysis & Animals (00:20:19) Adults & Biphasic Sleep, Modern Society (00:25:14) Chronotype, Circadian Rhythms & Biological Flexibility (00:29:07) Genetics & Chronotype (00:31:42) Sponsor: AG1 (00:32:55) Biphasic Sleep, Adults; Body Position & Sleepiness (00:40:09) Naps, Positive Benefits, Nighttime Insomnia (00:49:38) Tool: Optimal Nap: Duration & Timing; Grogginess (00:58:15) Nap Capacity, “Liminal” States & NSDR (01:07:37) NASA Nap Culture, Power Naps (01:11:49) Sponsor: Eight Sleep (01:12:50) Tools: Nap Timing, “Fragile” Nighttime Sleep; On-Off-On Protocol (01:18:57) Avoiding Naps: Insomnia, Aging & Sleep Quality Decline (01:28:20) Caffeine, “Nappuccino”; Hot Drinks (01:38:28) Adenosine Clearance, Sleep  (01:43:10) Tool: Delaying Caffeine, Afternoon Crash, Sleep Quality (01:49:06) Caffeine, Health, Antioxidants; Caffeine Tolerance & Alcohol (01:56:54) Tool: Nap “Enhancements”, Caffeine, Light & Face Washing (02:04:33) Polyphasic Sleep, Adverse Effects (02:12:43) Sleep Deprivation & Car Crashes; Polyphasic Sleep (02:16:49) Zero-Cost Support, Spotify & Apple Reviews, Sponsors, YouTube Feedback, Momentous, Social Media, Neural Network Newsletter Disclaimer