How does body temperature influence sleep and wakefulness?

Body temperature undergoes a 24-hour oscillation, decreasing as we get sleepy and reaching its minimum about two hours before our natural wake-up time. A drop of 2-3 degrees is necessary for deepest sleep. Warming up helps trigger the release of cortisol, our wake-up signal.

Is striving for perfect sleep counterproductive?

Obsessing over perfect sleep can be counterproductive, leading to additional stress (meta-stress) that hinders overall well-being. Accepting varied sleep schedules and focusing on happiness can chemically provide more dopamine and epinephrine, which are crucial for maintaining effort and reducing the perception of fatigue.

What are ultradian cycles and how do they impact sleep and daily performance?

Ultradian cycles are recurring 90-minute periods in which our bodies oscillate between different states. During the day, our ability to focus and perform peaks and then declines within these cycles. In sleep, we progress through different stages (NREM, REM) in 90-minute blocks. Waking at the end of an ultradian cycle, rather than in the middle, can lead to feeling more refreshed.

What is Non-Sleep Deep Rest (NSDR) and how can it be used?

Non-Sleep Deep Rest (NSDR) involves lying down and consciously relaxing the body, sometimes with hypnosis scripts, to enter states of deep calm without full sleep. This practice can be highly restorative for cognitive and motor function and can help improve the ability to fall asleep later. Even 20 minutes of NSDR can reset neuromodulator levels in the brain to states comparable to a full night's sleep.

How does respiration affect heart rate and exercise performance?

Inhaling speeds up the heart due to diaphragm movement creating more space, slowing blood flow and signaling the brain to accelerate. Exhaling slows the heart. To manage effort during exercise, focus on making exhales longer than inhales to slow the heart, or use double inhales to reinflate lung alveoli and offload carbon dioxide, increasing oxygen intake and reducing stress.

What is the relationship between anger, dopamine, and testosterone in performance?

Physiologically, excitement and anger can produce similar states of autonomic arousal. While love and excitement promote serotonin and dopamine for replenishment, channeled anger can also be a powerful fuel. Testosterone, which makes effort feel good, and cortisol (stress hormone) are both synthesized from cholesterol; excessive anger can divert cholesterol towards cortisol, potentially depleting testosterone.

How does fasting influence alertness and physical performance?

Fasting generally increases alertness by elevating epinephrine levels, an evolutionary mechanism to drive food-seeking behavior. Low carbohydrate intake also contributes to alertness. Many high performers report increased clarity of mind, suppleness, and explosiveness during extended fasts or ketogenic states due to optimized energy utilization and reduced digestive burden.

What role do different types of dreams play in emotional processing?

Dreams during early-night slow-wave sleep typically have general themes and less emotional content, coinciding with growth hormone release. REM sleep dreams, prevalent towards morning, are intensely emotional but occur when epinephrine is low, allowing the brain to process and 'divorce' emotion from prior experiences, acting as a form of self-induced therapy to uncouple trauma from emotional load.

C an psychedelics enhance neuroplasticity for skill learning and creativity?

Psychedelics can open windows of neuroplasticity, making the brain amenable to change and reframing space-time and emotional loads. New research suggests chemical modifications can remove the hallucinogenic component while retaining plasticity. This could be leveraged to direct neuronal changes for accelerated skill acquisition in areas like language, motor skills, or music, moving beyond recreational use to therapeutic or performance enhancement.

How can acetylcholine be leveraged for accelerated skill learning?

The release of acetylcholine from neurons in the nucleus basalis, produced in sync with a sensory or motor event, immediately reorganizes the neocortex, leading to permanent map representation and single-trial learning. This mechanism, supported by extensive research, holds potential for developing protocols to rapidly acquire motor, sport, language, and music skills by enhancing nicotinic acetylcholine transmission.

What potential does computer vision hold for neuroscience, particularly in studying human behavior?

Computer vision and machine learning are rapidly accelerating progress in neuroscience. They offer non-contact sensing methods to infer human states, such as cognitive load, stress, and autonomic arousal, from subtle cues like eye movements, blinking patterns, and changes in skin tone. Analyzing interactions between individuals (e.g., how blinks trigger each other) could reveal new insights into social neuroscience and correlated brain activity, moving beyond studying isolated subjects.

What are the advantages of online science education and modern podcasting?

Online platforms like YouTube and specialized podcasts offer an accessible, archival, and deeply engaging way to communicate science directly. They foster a sense of connection with the audience, allowing for in-depth, multi-episode dives into complex topics and direct audience feedback. This approach enables active researchers to share cutting-edge science in a way traditional academic institutions or news outlets often cannot, bridging the gap between rigorous research and public understanding.

What is the appeal of real-time, voice-only social networks like Clubhouse?

Voice-only platforms like Clubhouse create a unique sense of intimacy and psychological safety, as users are not visually presenting themselves (reducing self-consciousness) and often use real names, fostering a respectful environment. The live, unrecorded nature of many conversations adds a 'anything can happen' magic, similar to live concerts. This dynamic allows for deeper, more authentic human connection and shared experience, especially valued in times of remote interaction.

Key Moments

Andrew Huberman: Sleep, Dreams, Creativity, Fasting, and Neuroplasticity | Lex Fridman Podcast #164

Lex Fridman

Science & Technology8 min read174 min video

Feb 28, 2021|2,619,493 views|34,951|1,868

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Key Moments

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TL;DR

Huberman on sleep, dreams, neuroplasticity, fasting, and optimizing human performance with Lex Fridman.

Key Insights

Sleepiness is driven by adenosine accumulation and a 24-hour circadian temperature cycle; optimal health correlates with diurnal schedules.

The body's master circadian clock in the suprachiasmatic nucleus synchronizes all cellular rhythms primarily through temperature oscillations.

Consistent sleep duration, not just total amount, is crucial for cognitive performance, with 90-minute ultradian cycles playing a significant role.

Non-sleep deep rest (NSDR) and short naps (20-30 minutes) can restore cognitive function and neuromodulator levels, offering recovery from lost sleep.

Fasting enhances alertness by increasing epinephrine, and specific breathing techniques (double inhale-exhale) can optimize heart rate variability during exertion.

Neuroplasticity, particularly through cholinergic transmission, offers avenues for accelerated skill learning and can be influenced by psychedelics and directed experiences.

THE BIOLOGY OF SLEEP AND CIRCADIAN RHYTHMS

Andrew Huberman explains that the need for sleep is primarily driven by adenosine accumulation in the brain, which creates a feeling of sleepiness. This sensation is regulated by the body's 24-hour circadian cycle, an internal temperature oscillation. Body temperature typically drops to its lowest around 3-4 AM (for a diurnal person) and rises throughout the day, peaking in the late afternoon. These two mechanisms—adenosine and circadian clocks—converge to dictate sleepiness or wakefulness. Disrupting this rhythm, such as staying awake for 24 hours, reveals how adenosine continues to build, yet the body can feel more alert as its temperature rises towards its natural wake-up time, demonstrating the interplay of these forces.

THE MASTER CLOCK: SUPRACHIASMATIC NUCLEUS AND TEMPERATURE

The master circadian clock, situated in the suprachiasmatic nucleus (SCN) above the roof of the mouth, synchronizes all 24-hour rhythms in the body's cells. It achieves this by controlling systemic temperature. While individual cells have intrinsic clock genes, the SCN's signal entrains them to a harmonized rhythm. This temperature-based regulation is a highly efficient way to coordinate widespread biological processes, from liver function to metabolism. Research, notably by Joe Takahashi, highlights temperature as the key effector of the circadian clock, making it an elegant and effective universal signal for synchronizing distributed bodily systems.

OPTIMAL SLEEP AND THE DANGERS OF CHAOS

Huberman emphasizes that humans generally thrive on a diurnal schedule, waking with the sun and sleeping at night. Studies show strictly nocturnal individuals suffer from worse immune and metabolic function compared to diurnal people. Predators, however, like mountain lions, are crepuscular, active at dawn and dusk, leveraging their specialized vision for survival. While acknowledging that some individuals can adapt to irregular sleep, a consistent sleep schedule is paramount for optimal health. Deviations from natural light-dark cycles and predictable sleep patterns can lead to compromised physiological functions over time.

MANAGING SLEEP ANXIETY AND STRESS

Huberman believes that while sleep's importance is essential, the modern emphasis has sometimes led to excessive anxiety about achieving perfect sleep. He suggests that stress about not sleeping enough can be more detrimental than the actual physiological effects of reduced sleep. Happiness and engagement in one's activities release dopamine and epinephrine, which are crucial for sustained effort and can mitigate fatigue. Minimizing stress and adopting a positive mindset, recognizing that occasional sleep disruption doesn't equate to long-term harm, can significantly enhance well-being and performance, even if sleep is not ideal.

ULTRADIAN CYCLES AND NAP BENEFITS

Human wakefulness and sleep are structured in approximately 90-minute ultradian cycles. During wakefulness, attention and performance tend to build and then decline within these cycles. In sleep, the body cycles through different stages (NREM and REM) on similar 90-minute patterns. Optimally, waking at the end of a 90-minute cycle (e.g., after 6 hours rather than 7) can prevent grogginess. Huberman advocates for non-sleep deep rest (NSDR) — short, restorative periods of deep relaxation—or 20-30 minute naps to reset cognitive function and energy, especially during afternoon dips. These recovery methods can be as effective as longer sleep for certain aspects of brain function.

FASTING, ALL-NIGHTERS, AND MENTAL TOUGHNESS

For extreme physical challenges, like Lex Fridman's 48-mile run with David Goggins, Huberman suggests two main approaches: either embracing the all-nighter mentality by staying highly alert and pushing through without expecting sleep, or strategically utilizing short (90-minute) ultradian naps to maximize brief recovery periods. Fasting can be advantageous during such events as it increases alertness by boosting epinephrine levels, preventing the energy diversion towards digestion that makes one sleepy after eating. The mental fortitude to 'suck it up' and derive pleasure from effort, as Goggins emphasizes, is crucial, supported by the interplay of dopamine and epinephrine.

THE NEUROCHEMISTRY OF EFFORT AND MOTIVATION

Dopamine and testosterone play a critical role in making effort feel good. Dopamine, the molecule of pursuit and reward, resets the capacity for effort. Testosterone, synthesized from cholesterol (which can also be diverted to cortisol, a stress hormone), enhances the enjoyment of effort. If stress levels are consistently high, more cholesterol is shunted towards cortisol, potentially depleting testosterone over time. Huberman suggests that finding joy and genuine gratification in the process, rather than just the outcome, helps maintain higher testosterone levels, making sustained effort more pleasurable and less draining. Anger, while a powerful short-term fuel, can ultimately lead to cortisol-driven exhaustion.

OPTIMIZING PERFORMANCE THROUGH DIETARY TIMING

Intermittent fasting, particularly restricting calorie consumption to an 8-10 hour window (or even one meal a day), when aligned with daylight, shows metabolic benefits like reduced liver disease and body fat in mouse studies, though human adherence is key. Fasting increases alertness by raising epinephrine. Conversely, consuming complex carbohydrates, rich in tryptophan (a serotonin precursor), can induce sleepiness, making them beneficial before bed. Avoiding large, fibrous meals before or during intense physical exertion is advisable, as digestion diverts energy and can cause discomfort. Experimenting with diet is crucial, as individual responses to fasting and carbohydrate intake vary significantly.

HYDRATION, ELECTROLYTES, AND BRAIN HEALTH

Proper hydration and electrolyte balance (sodium, magnesium, potassium) are fundamental for nervous system function. Low sodium levels, for example, can impair neuronal action potentials, leading to shakiness and fatigue. Many mistakenly attribute these symptoms to needing sugar when simply adding salt to water would alleviate them. While salt has been demonized, it's essential for body function, provided hypertension isn't an issue and water intake is sufficient. Omega-3 fatty acids, particularly EPA, also play a vital role in brain health, with studies showing their efficacy in offsetting depressive symptoms, comparable to some antidepressant medications.

THE MYSTERY AND THERAPY OF DREAMS

Dreams offer a window into brain function, particularly during rapid eye movement (REM) sleep. Early-night dreams (non-REM) often involve spatial information replay, crucial for solidifying learned routes and contexts, with growth hormone release correlating with a more general, less emotional dream content. Later-night REM dreams, however, are intensely emotional and feature 'theory of mind' components—assigning motives to other dream characters. REM sleep is critical for uncoupling emotional load from past traumatic experiences, essentially serving as self-induced trauma therapy by allowing intense emotional experiences without the physical fear response. Deprivation of REM sleep leads to irritability and an inability to detach emotions from events.

PSYCHEDELICS, NEUROPLASTICITY, AND ETHICAL CONSIDERATIONS

Psychedelics, such as psilocybin and LSD, bear striking similarities to REM dream states, particularly in their ability to induce dissociation and alter perceptions of space-time. These substances foster neuroplasticity, making the brain more amenable to change. The Hopkins research group is rigorously studying psychedelics for therapeutic uses, recognizing their potential to reframe emotional responses and treat conditions like depression, even exploring non-hallucinogenic versions that retain neuroplastic benefits. MDMA, uniquely elevating both dopamine and serotonin, presents a potent, unnatural state that could be particularly effective for certain forms of depression, though ethical considerations regarding their use and directed application remain crucial.

CREATIVITY, WORDLESSNESS, AND NEUROPLASTICITY'S GATES

Creativity often thrives in non-linear thinking, contrasting with productivity's reliance on linearity. The ability to toggle between these states is key. Wordless activities like Jiu-Jitsu, surfing, or meditation can be profoundly renewing, allowing for a break from internal language and potentially accessing deeper creative states. From a neuroscientific perspective, a potent gate for neuroplasticity involves the release of acetylcholine from the nucleus basalis in the forebrain. This mechanism, observed in studies by Mike Merzenich, can reorganize the neocortex, leading to single-trial learning and accelerated skill acquisition in adults. Leveraging this, potentially with safe pharmacology, could revolutionize learning across various domains.

THE FUTURE OF NEUROSCIENCE: AI, ENGINEERING, AND PRACTICAL SOLUTIONS

The future of neuroscience lies at the intersection of biology, computer science, and engineering. AI and machine learning offer powerful tools for analyzing vast datasets (e.g., cell sequencing, brain imaging) and unveiling the fundamental algorithms of the brain. The field is shifting towards practical problem-solving, with more neuroscientists moving to industry roles to build useful technologies like brain-machine interfaces. Non-contact sensing, like analyzing eye movements and blinking, holds immense potential for inferring cognitive load and autonomic states, offering a new frontier for understanding human behavior in real-world contexts, even studying the 'two brains system' of interacting individuals.

THE DIGITAL ERA OF SCIENCE COMMUNICATION

The rise of platforms like YouTube and podcasts is transforming science communication, making complex topics accessible and engaging beyond traditional academic settings or media. Huberman's podcast, inspired by Lex Fridman's, exemplifies staying deep on a single topic over many episodes, aiming to educate a diverse audience with actionable tools while maintaining scientific rigor. This new era invites practicing scientists to share their expertise directly, fostering a deeper connection with the public and potentially inspiring future generations of innovators, much like the archival nature of platforms allows for lasting educational impact.

THE MENTAL TOLL OF EXTREME HIGH PERFORMANCE

Elon Musk's life, characterized by immense stress from managing multiple high-stakes ventures, highlights the extreme demands on biological systems under constant cognitive load. While fulfilling for him, such a life is not sustainable for most, as the brain's capacity for scripted, linear thinking and prediction has limits. Managing this requires optimizing biology through every available resource and potentially buffering leadership from smaller stressors. However, the ultimate question of whether to pursue such an intensely demanding life, even for a dream, is a profoundly personal one, often explored in non-verbal, non-analytic states that reveal one's true capacity and values.

Mentioned in This Episode

●Supplements

●Products

●Software & Apps

●Companies

●Organizations

●Books

●Drugs & Medications

●Concepts

●People Referenced

Sleep, Performance & Mindset Cheat Sheet

Practical takeaways from this episode

Do This

Aim for consistent sleep duration, even if it's less than 8 hours, to improve performance.

Take short naps (20-30 minutes) to avoid REM sleep and disoriented waking.

Practice Non-Sleep Deep Rest (NSDR) or hypnosis to promote calm and restorative states.

Keep complex carbohydrates to a minimum for increased alertness during the day.

Consume carbohydrates in the evening if you want to promote sleepiness.

Ensure proper hydration and electrolyte intake (sodium, magnesium, potassium) to prevent fatigue and support nerve function, especially during fasting or exertion.

Use double inhales followed by exhales during steady endurance exercise to optimize breathing and offload carbon dioxide.

Channel anger as fuel for performance, but manage its intensity to avoid exhaustion and maintain testosterone levels.

Find gratitude and genuine enjoyment in your activities to boost dopamine and epinephrine, enhancing effort and resilience.

Avoid This

Do not stress about not getting 'perfect' sleep; accept varied sleep schedules to avoid meta-stress.

Avoid overeating heavily fibrous foods before physical exertion, as it can cause discomfort and divert energy to digestion.

Don't rely solely on anger as a continuous fuel source, as it can lead to exhaustion and deplete testosterone.

Don't exclusively breathe through the nose during maximum physical exertion if it restricts oxygen intake.

Do not give too much value to thoughts or feelings experienced near your temperature minimum (2 hours before typical wake time) as brain function is hobbled.

Common Questions

Humans need sleep primarily because adenosine accumulates in the brain the longer we are awake, binding to receptors and creating a feeling of sleepiness. This process interacts with our 24-hour circadian rhythm, which is largely dictated by body temperature oscillations, to regulate our sleep-wake cycle.

Topics

Meditation Fasting Health & Longevity Neuroscience & the Brain Mental Health & Psychology Human Performance Science & Mathematics Science Communication Circadian Rhythms Psychedelics Research Human Cognition Sleep Regulation Endurance Challenges

Mentioned in this video

Organizations

Huberman Lab Podcast

Andrew Huberman's new podcast on YouTube, offering weekly masterclasses in neuroscience.

Stanford University

Andrew Huberman is a neuroscientist at Stanford. Several colleagues mentioned in the podcast also work there.

NIH

A US government agency supporting biomedical and health-related research, showing increasing interest in psychedelic studies.

Chen Zuckerberg Initiative

An initiative that has invested heavily (three billion dollars) into sequencing all cell types in humans and animals, with a goal to cure diseases.

Concepts

Circadian rhythm

A 24-hour oscillation, largely driven by body temperature, that influences sleepiness and wakefulness. Aligned with the earth's rotation and light cycles.

cholesterol

The molecule from which testosterone and cortisol are synthesized, with a limited amount being diverted to one pathway or the other.

Warrior Diet

A fasting protocol originated by Ori Hofmekler, involving eating one main meal a day within a limited window.

Theory of Mind

The ability to attribute mental states (beliefs, desires, intentions) to oneself and others, a component heavily present in REM dreams.

Nucleus Basalis

A cluster of neurons in the forebrain that releases acetylcholine, critical for neuroplasticity.

prolactin

A hormone associated with feeling quiescent, lazy, and less inclined towards pursuit. Considered the opposite of testosterone.

Non-Sleep Deep Rest

A practice of deep relaxation, like lying down or hypnosis, that can be restorative for cognitive and motor function and improve sleep later.

Hippocampus

A brain region containing 'place cells' that fire to indicate location and are replayed during sleep.

adenosine

A chemical in the brain that accumulates with wakefulness, leading to feelings of sleepiness. Reduced during sleep.

Temperature Minimum

The coldest point in a person's 24-hour cycle, typically two hours before natural wake-up time, which can be influenced by light exposure to shift sleep schedules.

Acetylcholine

A neurotransmitter associated with focus, whose release in the forebrain reorganizes the neocortex and facilitates single-trial learning.

Suprachiasmatic nucleus

The master circadian clock located above the roof of the mouth, which synchronizes all body clocks to the general temperature rhythm.

Glymphatic System

Referred to as the 'sewer system of the brain,' involved in clearing out waste products.

Transcranial Magnetic Stimulation

A non-invasive brain stimulation technique that can be used to shut down specific brain activity.

Ketogenic Diet

A diet that involves low carbohydrate intake, leading to the body switching to ketosis for energy, which can enhance alertness and physical performance.

growth hormone

A hormone released during early-night slow-wave sleep.

REM sleep

Rapid Eye Movement sleep, characterized by intense brain activity, high metabolic rates, dream content with strong emotional themes, and temporary paralysis.

ultrasound

A non-invasive technology now capable of very focal activation of particular brain regions through the skull.

Media

Lex Fridman Podcast

The podcast Andrew Huberman is a guest on, known for serious scientific and intellectual conversations.

People

Lex Fridman

Host of the podcast, who is collaborating with Andrew Huberman on a paper about neuroscience and machine learning.

Joseph Takahashi

A researcher known for his work on how temperature oscillations are central to the body's circadian rhythms.

David Goggins

An ultra-endurance athlete known for pushing mental and physical limits. Lex Fridman is joining him for a 48-mile running challenge.

Emily Hoagland

Conducted a study from Bob Stickgold's lab at Harvard Medical showing that consistent sleep duration is vital for performance.

Andrew Huberman

Neuroscientist at Stanford, world-class researcher and educator, host of the Huberman Lab podcast.

Ori Hofmekler

Credited as an originator of intermittent fasting concepts, particularly the 'Warrior Diet.'

Dan Gable

Legendary wrestling coach, described as a 'master controller,' whose hypothetical psychedelic experience would be fascinating due to his resistant nature.

Simon Baron-Cohen

Researcher at Cambridge known for developing the 'Theory of Mind' concept, used in diagnosing autism.

Lisa Feldman Barrett

A highly intellectual and spirited researcher who studies emotion, previously a guest on Lex's podcast.

Bob Stickgold

Researcher at Harvard Medical who conducted a study on the consistency of sleep duration and academic performance.

Duncan French

Runs the UFC training center and did his PhD at UConn, studying the relationship between stress hormones, testosterone, and dopamine.

Anya Fernald

Founder and CEO of Belcampo Farms, known for her contributions to nutrition and sustainable agriculture.

Ken Kesey

Figure from the Beat Generation, author of 'One Flew Over the Cuckoo's Nest,' who experimented with LSD and lost academic standing.

Joe Rogan

Podcast host, mentioned as an inspiration for approaching the world with a loving view and also for his discussion of dmt.

Matthew Wilson

MIT researcher who showed in rodents, and later in humans, that spatial information is replayed during sleep.

Susumu Tonegawa

Nobel Prize winner for immunoglobulin, also a neuroscientist who has shown that neuronal replay in sleep approximates previous experiences, aiding in unlearning fear.

Matthew Johnson

A Johns Hopkins researcher rigorously studying psychedelics at an academic level, initially supported by private philanthropy.

Laird Hamilton

Big wave surfer, quoted for his 'bright light dark shadow' philosophy regarding intensity.

Elon Musk

CEO of multiple companies, including Neuralink, known for immense drive and high stress levels, described as a virtuoso in many domains.

Aldous Huxley

Author, associated with early psychedelic experimentation (LSD), alongside Ken Kesey.

David Spiegel

A colleague of Andrew Huberman at Stanford who develops hypnosis scripts and studies medical hypnosis for pain/anxiety management and cancer outcomes.

Satchin Panda

A phenomenal biologist and researcher at the Salk Institute, author of 'The Circadian Code,' who popularized intermittent fasting.

Mike Merzenich

Formerly at UCSF, his work primarily focused on acetylcholine's role in neuroplasticity and cortical reorganization.

Vlad Tenev

CEO of Robinhood, who was interviewed by Elon Musk on Clubhouse regarding the GameStop stock controversial events.

Allan Hobson

MD from Harvard Medical, author of 'Dream Drugstore,' one of the first neuroscience books about the similarities between hallucinations, psychedelics, and dreaming.

Companies

Athletic Greens

A supplement Andrew Huberman has been using since 2012, providing vitamins and minerals, simplifying daily nutrition.

BetterHelp

An online therapy platform, mentioned as a sponsor.

MasterClass

An online course platform, mentioned as a sponsor and a potential future platform for an Andrew Huberman neuroscience course.

Belcampo Farms

A farm known for ethically raised meat, with its founder Anya Fernald emphasized for her expertise in sustainable agriculture.

Robinhood

A financial trading app, whose CEO was interviewed by Elon Musk on Clubhouse.

Eight Sleep

A smart mattress company that allows for temperature control during sleep, which Huberman confirms is beneficial for deeper sleep.

Four Sigmatic

A mushroom coffee brand, mentioned as a sponsor.

PayPal

Previous company Elon Musk was involved with, where he worked with common friends of Lex Fridman and Andrew Huberman.

Neuralink

An Elon Musk company focused on brain-machine interface technology, drawing top neuroscience talent from academia.

Supplements

Tyrosine

An amino acid, abundant in red meats, that is a precursor to dopamine and subsequently epinephrine.

Potassium

An essential electrolyte for overall bodily function, including nerve cells.

DMT

A potent psychedelic molecule described as a 'freight train through space and time,' tapping into a brain state distinctly different from other psychedelics.

Tryptophan

A precursor to serotonin, found in complex carbohydrates, which can induce sleepiness.

Magnesium

An essential electrolyte for overall bodily function, including nerve cells.

sodium

An essential electrolyte for nerve cell function; often found in bone broth and important for hydration and preventing shakiness during fasting.

EPA

A type of omega-3 fatty acid, abundant in fish oils, correlated with reducing depressive symptoms.

Omega-3 fatty acids

Essential fatty acids, particularly EPA, found in fish oils and some meats/plants, shown to offset depressive symptoms.

Software & Apps

Tim Ferriss Podcast

Podcast where Andrew Huberman first heard about Athletic Greens.

Discord

A communication platform with voice chat capability, compared to Clubhouse, where everyone could talk freely leading to less organized conversations.

Clubhouse

A voice-only social network, discussed for its intimacy, tier system, and challenges with etiquette and time consumption.

Drugs & Medications

Ketamine

A dissociative analgesic being used for trauma therapy to shut off the emotion system from traumatic experiences.

Zoloft

An SSRI antidepressant, used as a comparison for the antidepressant effects of omega-3s.

Selective Serotonin Reuptake Inhibitors

Antidepressant medications like Prozac and Zoloft; omega-3s (EPA) have shown similar efficacy in some studies for depressive symptoms.

Prozac

An SSRI antidepressant, used as a comparison for the antidepressant effects of omega-3s.

MDMA

A psychoactive drug that causes high dopamine and serotonin release, creating a unique state for potential depression treatment.

epinephrine

A neurochemical released during effort and stress; its accumulation can lead to feeling like giving up.

PCP

A dissociative drug, mentioned as being chemically similar to Ketamine.

LSD

A psychedelic drug, discussed in comparison to REM dreams and as an agent for neuroplasticity.

GHB

A now-illegal drug that was popular in the 80s and 90s for promoting a massive release of growth hormone and hypnotic states.

psilocybin

A psychedelic compound found in 'magic mushrooms', promoting serotonin release and lateralized connections; being studied for its neuroplasticity effects.

Books

Dream Drugstore

A book by Allan Hobson that was one of the first neuroscience texts to explore the similarities between hallucinations, psychedelics, and dreaming states.

The Circadian Code

A book by Satchin Panda that popularized intermittent fasting, detailing its benefits for metabolic health.

Products

Nicorette

A nicotine gum, mentioned as a way to stimulate the nicotinic system to increase focus and attention, used by a Nobel Prize-winning colleague.

Magic Spoon

A low-carb cereal brand, mentioned as a sponsor.