Huberman Lab

In this Huberman Lab Essentials episode, I explain how to build endurance and describe targeted protocols to enhance different types of endurance. I discuss how endurance—the ability to sustain effort—requires the coordination of physical and mental systems driven by energy availability, brain willpower, and specific training adaptations in the muscles, heart, lungs and neurons. I explain conditioning protocols designed to enhance four types of endurance, from long-duration steady state to muscular endurance and high-intensity intervals, and how each training style triggers unique adaptations in the body and brain, such as improved mitochondrial function and oxygen utilization. Additionally, I highlight the crucial role of hydration and electrolytes, which are essential for neural function and influence the brain’s willpower to sustain effort. Read the episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman LMNT: https://drinklmnt.com/huberman Eight Sleep: https://eightsleep.com/huberman Function: https://functionhealth.com/huberman Follow Huberman Lab Instagram Threads X Facebook TikTok LinkedIn Timestamps 00:00:00 Huberman Lab Essentials; Build Endurance 00:00:50 Energy Sources, ATP, Oxygen 00:04:14 Neurons & Willpower, Glucose & Electrolytes 00:09:19 Heart, Lungs; Physiology & Performance Limiting Factors 00:10:35 Sponsor: AG1 00:12:30 Muscular Endurance, Protocol, Concentric Movements, Mitochondria 00:19:10 Sponsors: LMNT & Eight Sleep 00:22:00 Long-Duration Endurance, Efficiency, Mitochondria, Capillaries 00:25:54 High-Intensity Interval Training (HIIT), Anaerobic Endurance, Protocol 00:32:33 High-Intensity Aerobic Endurance, Adaptations 00:35:30 Sponsor: Function 00:37:26 Brain & Body Adaptations, Heart 00:40:40 Hydration, Tool: Galpin Equation 00:42:21 Supplements, Stimulants, Magnesium Malate 00:43:11 Recap & Key Takeaways Disclaimer & Disclosures

My guest is Dr. Mark Hyman, M.D., a physician and world leader in the field of functional medicine. We discuss a systems-based framework for diagnosing and treating the root causes of disease, rather than simply managing symptoms. We also cover cutting-edge health and longevity tools such as peptides, NAD/NMN, exosomes, proactive blood testing and cancer screening, as well as nutrition, supplementation, detoxification, and strategies for addressing specific diseases and health challenges. This discussion will benefit anyone seeking to improve their vitality or combat specific health concerns. Read the episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Joovv: https://joovv.com/huberman Eight Sleep: https://eightsleep.com/huberman Function: https://functionhealth.com/huberman ROKA: https://roka.com/huberman Timestamps 00:00:00 Dr. Mark Hyman 00:01:48 Functional Medicine, Chronic Fatigue Syndrome, Mercury; Systems Medicine 00:08:51 Metabolic Psychiatry; Medicine, Creating Health vs Treating Disease 00:12:19 Sponsors: Joovv & Eight Sleep 00:15:06 Wholistic View of Body, Root Causes 00:19:48 Medicine & Research; “Exposome”, Impediments & Ingredients for Health, Whole Foods 00:26:30 Seed Oils, Starch & Sugar, Ultra-Processed Foods; Obesity Rise 00:36:27 Sponsors: Function & ROKA 00:40:05 Tool: Ingredients for Health, Personalization; Multimodal Approach 00:46:25 Essential Supplements, Omega-3s, Vitamin D3, Multivitamin, Iodine, Methylated B12 00:56:54 Supplements & Traditional Medicine; Limited Budget & Nutrition 01:02:54 Air, Tool: Air Filters; Tap Water Filter; Tool: Health, Expense & Whole Foods 01:09:03 Food Industrialization, Processed Foods 01:14:23 Sponsor: AG1 01:16:18 Declining American Health & Nutrition, Politics, MAHA 01:26:03 Toxins, Food Additives, Generally Recognized As Safe (GRAS) 01:29:25 SNAP Program & Soda, Food Industry & Lobbying 01:36:58 Big Food, Company Consolidation, Nutrition Labels 01:44:21 GLP-1 Agonists, Doses, Risks; Food as Medicine, Ketogenic Diet 01:51:29 Cancer, Diets & Alcohol 01:54:03 Blood Markers, ApoB, Cholesterol, Tool: Test Don’t Guess, Individualization 02:02:54 Mercury; Tool: Detoxification, Sulforaphane, N-Acetylcysteine (NAC) 02:04:56 Endocrine Disrupting Chemicals, Fertility, Tool: Hormone Panels; Heavy Metals 02:11:36 Upregulate Detox Pathways, Gut Cleanse, Tools: Cilantro Juice, Fiber 02:17:08 Peptides, PT-141 (Vyleesi), BPC-157, Thymosin Alpha-1; Risks, Cycling 02:22:03 Cancer Screening, Data & Personalized Health; Alzheimer’s Disease 02:30:45 Longevity Switches, NAD, NMN; Exosomes, Stem Cells 02:39:50 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures

In this Huberman Lab Essentials episode, I discuss how to build muscle strength and size (hypertrophy) and cover key training principles to enhance athletic performance and offset age-related muscle decline. I explain how the nervous system drives muscle movement, the key differences between training for hypertrophy or strength, and resistance training protocols to build muscle for performance and healthy aging. Additionally, I discuss tools for assessing recovery and the role of key nutrients—such as creatine and electrolytes—in supporting muscle development and performance. This episode provides actionable, science-backed strategies to enhance movement, preserve strength with age, and boost energy levels. Read the episode show notes at hubermanlab.com. We want to hear from you. Take our quick survey to help improve Huberman Lab. Timestamps 00:00:00 Huberman Lab Essentials; Muscle 00:02:02 Muscle & Nervous System 00:03:24 Sponsors: Eight Sleep & LMNT 00:06:03 Strength & Aging, Henneman's Size Principle, Use Heavy Weights? 00:10:09 3 Stimuli, Muscle Strength vs Muscle Growth (Hypertrophy) 00:12:11 Tool: Resistance Training Protocol, Increase Muscle Strength 00:15:55 Sponsor: AG1 00:17:50 Tool: Advanced Resistance Training & Volume; Speed, Rest 00:21:12 Testing for Recovery, Heart Rate Variability, Grip Strength 00:24:29 Sponsor: Function 00:26:16 Testing for Recovery, Carbon Dioxide Tolerance 00:29:20 Ice Bath Timing; NSAIDs & Exercise 00:30:34 Salt & Electrolytes; Creatine; Leucine Disclaimer & Disclosures

My guest is Lori Gottlieb, MFT, a psychotherapist and bestselling author who specializes in helping people build strong relationships by first understanding themselves and the stories they’ve internalized about themselves and others. We explore how our parents, wounds and unique strengths—both consciously and unconsciously—influence our partner choices and how we show up in relationships, as well as how to avoid and break free from destructive patterns. We also discuss the impact of texting, social media and dating apps on partnership. Lori shares which signals to follow to become the best romantic partner possible and how to make choices that lead to greater vitality, happiness and fulfillment in all areas of life. Read the episode show notes at hubermanlab.com. We want to hear from you. Take our quick survey to help improve Huberman Lab. Thank you to our sponsors AG1: https://drinkag1.com/huberman Helix Sleep: https://helixsleep.com/huberman BetterHelp: https://betterhelp.com/huberman David Protein: https://davidprotein.com/huberman LMNT: https://drinklmnt.com/huberman Timestamps 00:00:00 Dr. Lori Gottlieb 00:02:01 Patient & First Question; Talked Out of Feelings 00:06:15 Self-Regulation vs Co-Regulation, Tool: Pause & Perspective 00:10:04 Sponsors: Helix Sleep & BetterHelp 00:12:36 Relationships, Childhood & Unfinished Business 00:17:13 Unconscious Mind, Hurtful Parent & Familiarity, Role of Therapy 00:26:35 Excitement & Chaos, Cherophobia; Storytelling, First Date & Sparks? 00:36:27 Tool: Awareness of Death & Living Fully; Vitality; Fear vs Acceptance 00:47:27 Sponsors: AG1 & David Protein 00:50:35 Activate vs Energize; Tool: Technology, Numbness & Overwhelm 00:54:50 Numb or Calm?, Gender Stereotypes, Tool: Mentalizing 01:00:51 Feelings, Projective Identification, Tool: Owning Your Feelings 01:03:25 React vs Respond; Space, Tool: Face-to-Face Conversation vs Text 01:10:16 Behavioral Change, 5 Steps of Change, Tool: Self-Compassion & Accountability 01:15:38 Sponsor: LMNT 01:16:54 Deadlines & Rules; Idiot vs Wise Compassion, No Drama & Assumptions 01:26:27 Silent Treatment, Crying & Manipulation, Shame vs Guilt, Self-Preservation 01:33:01 Self-Reflection, Individual & Couples Therapy, Transference; Agency 01:38:56 Texting, Conflicts, Breakups, Pain Hierarchy, Tool: Move Forward 01:46:42 Relationship Breakups, Daily World & Loss 01:53:30 Bank of Goodwill; Talking About Partner, Focus, Comparison 02:01:13 Infidelity, What If vs What Is, Attention & Appreciation 02:04:56 Gut Instinct, Change Behavior, Danger, Productive vs Unproductive Anxiety 02:15:27 Knowing Oneself, Relationships, Flexibility, Shared History 02:20:30 Romantic Relationships & Teens, Social Media, Privacy 02:27:09 Online Apps & Choices, Maximizers vs Satisficers, Tool: Identify Your Weakness 02:33:09 Fixing Issues Early, Tool: Self vs Partner Lists & Character Qualities 02:41:51 Feeling Toward Partner, Calm, Content; Tool: Operating Instructions 02:46:48 Help-Rejecting Complainers; Relationships, Love & Core Wounds 02:51:22 Stories & Unreliable Narrators, Editing, Tool: 5 Senses 02:59:04 Young Men, Masculinity, Confusion 03:07:03 Grief, Making Sense of Loss 03:09:54 Maybe You Should Talk to Someone Workbook; Ask The Therapist, Choosing a Bigger Life 03:20:26 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures

In this Huberman Lab Essentials episode, I explore how the nervous system impacts fat loss and how certain behaviors and supplements can accelerate fat burning. I explain how non-exercise movements like fidgeting and shivering trigger adrenaline to boost fat metabolism. I also examine the impact of exercise intensity and fasted workouts on fat burning, and how supplements such as caffeine, GLP-1 and berberine can further support fat loss. These science-based tools go beyond traditional calorie counting to enhance metabolism and improve body composition. Huberman Lab Essentials are short episodes (approximately 30 minutes) focused on essential science and protocol takeaways from past Huberman Lab episodes. Essentials will be released every Thursday, and our full-length episodes will still be released every Monday. Read the episode show notes at hubermanlab.com. We want to hear from you. Take our quick survey to help improve Huberman Lab. Thank you to our sponsors AG1: https://drinkag1.com/huberman David: https://davidprotein.com/huberman LMNT: https://drinklmnt.com/huberman Timestamps 00:00:00 Huberman Lab Essentials; Fat Loss 00:01:00 Calories In, Calories Out; Nervous System 00:02:57 Fat Burning, Nervous System & Adrenaline 00:06:31 Sponsor: David 00:07:45 Increase Adrenaline, Shivering, Tool: Fidgeting 00:11:25 Shivering & Fat Loss, White & Brown Fat 00:14:42 Tool: Deliberate Cold Exposure Protocol 00:16:43 Sponsor: AG1 00:18:38 High, Medium vs Low-Intensity Exercise, Exercise Fasted? 00:24:30 Tool: Exercise for Fat Loss; Adrenaline 00:27:18 Sponsor: LMNT 00:28:34 Caffeine, Dose, Exercise & Fat Loss 00:30:17 GLP-1, Yerba Mate, Exercise; Semaglutide 00:33:16 Berberine, Metformin, Insulin 00:34:12 Diet, Adherence, Carbohydrates & Insulin 00:35:52 Recap & Key Takeaways Disclaimer & Disclosures

My guest is Dr. Chris Palmer, M.D., a board-certified psychiatrist and professor at Harvard Medical School. He explains how specific nutrition, exercise, supplement-based, and other factors can improve mitochondrial health and thereby provide relief from adult and childhood ADHD, bipolar disorder, schizophrenia, and symptoms of autism. We discuss mitochondrial biology, whether vaccines can impact inflammation and mitochondrial health, and the potential ramifications. We also review creatine, methylene blue, and urolithin A, as well as the role of B vitamins and iron in treating depression. By the end of this episode, you will understand the powerful link between metabolic health and mental health, and the lifestyle, dietary, and other factors you can leverage to help overcome common mental health challenges and disorders. Read the episode show notes at hubermanlab.com. We want to hear from you. Take our quick survey to help improve Huberman Lab. Thank you to our sponsors AG1: https://drinkag1.com/huberman Our Place: https://fromourplace.com/huberman LMNT: https://drinklmnt.com/huberman Eight Sleep: https://eightsleep.com/huberman Function: https://functionhealth.com/huberman Timestamps 00:00:00 Dr. Chris Palmer 00:02:15 Integrating Metabolic, Mental & Physical Health; Childhood Trauma & Risk 00:10:46 Sponsors: Our Place & LMNT 00:13:44 Depression Causes, Molecule Model?, Neuroplasticity?; Metabolism 00:22:20 Mitochondrial Functions, Stress Response, Mental Health 00:31:09 Sponsors: AG1 & Eight Sleep 00:33:59 Mitochondrial Health & 6 Pillars of Lifestyle Medicine 00:39:38 Stimulants, Mitochondria, Dopamine; Alcohol 00:45:47 Nicotine; Substance Use, Metabolic Health & Disease 00:52:23 Children, Energy & Metabolic Function; Diseases of Aging & Mental Disorders 00:59:18 Sponsor: Function 01:01:06 Diet & Metabolism; Ultra-Processed Foods, Additives, GRAS 01:09:30 Rebellious Spirit, Ultra-Processed Foods & Food Industry Funding 01:19:14 Ketogenic Diet, Epilepsy, Schizophrenia, Bipolar 01:22:52 Ketogenic Diet, Fasting & Mitochondria; Gut Microbiome, Brain Metabolism 01:30:06 Low-Fat Diets; Tool: Occasional Fasts; Ketogenic Diet; Intermittent Fasting 01:38:40 Nutrition Research, Food Industry Lobbyists; Ultra-Processed Foods, Addiction 01:46:55 Creatine & Mitochondrial Health 01:52:34 Methylene Blue & Mitochondria; Serotonin Syndrome 02:02:58 Urolithin A, Mitochondria Function; Supplements & Appropriate Use 02:11:14 Vitamin Deficiencies, Iron Deficiency 02:16:06 Vitamin B12 & Folate Deficiency, Autoimmune Disorders 02:24:48 Mental Illness & Root Causes 02:29:02 Vaccines, Inflammation, Mitochondria, Autism 02:39:17 Neurodevelopmental Disorder Onset & Follow-Up 02:45:31 Vaccines, Autism, Future Research; Mother Obesity & Diabetes 02:51:23 Father Obesity & Autism; Poor Metabolic Health, Blood Biomarkers 02:56:44 Assessing Metabolic Health & Biomarkers; National Institutes of Health (NIH) 03:02:59 Future Directions, Bridging Mental & Physical Health 03:09:27 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures

In this Huberman Lab Essentials episode, I explore how to improve motor skill learning and proficiency—whether for athletic performance, learning an instrument or refining any physical skill. I explain practical tools to build skills, including how to structure learning sessions to focus on repetitions, use internal feedback systems and learn from errors—key elements for accelerating progress. I also discuss strategies such as visualization, metronoming, idle time and the impact of supplements like alpha-GPC and caffeine on performance. This episode provides valuable insights for anyone looking to accelerate and optimize their motor skill development. Huberman Lab Essentials are short episodes (approximately 30 minutes) focused on essential science and protocol takeaways from past Huberman Lab episodes. Essentials will be released every Thursday, and our full-length episodes will still be released every Monday. Read the episode show notes at hubermanlab.com. We want to hear from you. Take our quick survey to help improve Huberman Lab. Thank you to our sponsors AG1: https://drinkag1.com/huberman LMNT: https://drinklmnt.com/lmnt Mateina: https://drinkmateina.com/huberman Timestamps 00:00:00 Huberman Lab Essentials; Learning Motor Skills 00:01:10 Building New Skills, Tools: Open vs Closed Loop; Focus 00:03:58 Sponsor: LMNT 00:05:15 Skills & Realistic Expectations, Super Mario Effect 00:09:34 Tube Test & Brain, Tool: Increase Repetitions 00:12:19 Importance of Errors, Framing Effect, Neuroplasticity 00:14:39 Sponsor: AG1 00:15:43 Learning Session Protocol, Tool: Idle Time Post-Learning 00:19:44 Movement Speed, Ultra-Slow Movements 00:21:49 Skill Proficiency & Errors, Tool: Metronoming 00:24:16 Sponsor: Mateina 00:25:42 Mental Rehearsal & Limits, Tool: Visualization 00:28:24 Skill Learning & Supplements, Alpha-GPC, Caffeine 00:32:14 Recap & Key Takeaways Disclaimer & Disclosures

My guest is Dr. Staci Whitman, DMD, a board-certified dentist for kids and adults. We discuss the critical importance of oral care and the oral microbiome for brain and bodily health. We examine the negative effects of common oral care product ingredients such as alcohol, astringents, and bleaches. We also explore the history and real impact of fluoridated drinking water on oral, bone, and systemic health. Then we discuss healthy, lesser-known solutions for bad breath, canker sores, cavities, and teeth whitening. We cover how teeth can be made to repair their own cavities and the connection between oral health and cardiovascular health, male and female fertility, dementia, and cancer. This episode goes far beyond the best approaches to brushing and flossing and will be a valuable resource for anyone seeking to improve their oral health and appearance at any age. Read the episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman BetterHelp: https://betterhelp.com/huberman Joovv: https://joovv.com/huberman Function: https://functionhealth.com/huberman LMNT: https://drinklmnt.com/huberman Timestamps 00:00:00 Dr. Staci Whitman 00:02:04 Oral Health & Oral Microbiome 00:05:01 Oral Healthcare Ingredients, Sodium Lauryl Sulfate (SLS); Canker Sores 00:08:45 Sponsors: Eight Sleep & BetterHelp 00:11:38 Cavities & Teeth De-/Remineralization, Fluoride 00:19:14 Cavities, Tool: Meal Frequency, Fasting 00:21:51 Sugar, “Dissolvable” Carbs & Cavities, Tools: Feed the Rainbow, Clean Diet 00:27:41 White Teeth, Bleaching, Hydroxyapatite, Mouth Breathing 00:34:34 Antibiotics, Gut & Oral Microbiome, Tool: Probiotics 00:36:20 Mouthwash, Alcohol, Astringents, Cardiovascular Risk, Bad Breath 00:39:54 Sponsors: AG1 & Joovv 00:42:21 Saliva, Dry Mouth, Salivary Analysis, Tools: Hydration; Nasal Breathing 00:47:23 Mouth vs. Nasal Breathing, Hard & Soft Tissue Issues 00:54:19 Deviated Septum, Therapies, Kids & Adults, Mouth Breathing & Sleep Disorders 01:00:42 Gum Health, Flossing; Sexual Health 01:01:50 Shifting to Nasal Breathing, Mouth Taping, Tools: 3-Minute Test, Kiss The Sky 01:05:53 Chewing Gum, Mastic Gum, Tool: Xylitol; Chewing Food, Breastfeeding 01:11:28 Sponsor: Function 01:13:15 Gum Disease, “Leaky Gums”, Cardiovascular Disease, Dementia, Cancer 01:20:05 Antibiotics, Ozone Therapy, Oil Pulling, Mold, Tool: Coconut Oil; Facial Trauma 01:28:07 Nicotine Gum & Pouches, Oral Health; Coffee, Teeth Whitening 01:34:16 Whole Foods, Hydroxyapatite Toothpaste; Tool: Testing Oral Microbiome 01:39:39 Water Fluoridation, History, Other Fluoride Sources, Neurocognitive Issues 01:54:57 Drinking Water & Fluoride, Toothpaste, Cavities 01:59:51 Sponsor: LMNT 02:01:07 Water Fluoridation & Levels 02:04:52 Oral Health & Fertility 02:07:03 Toothbrushing, Flossing, Waterpik, Tool: Toothbrushing & Meals 02:13:23 Teeth Spots & Markings, Fluorosis, Hypoplastic Enamel 02:19:10 Oral Health, Women, Pregnancy, Menopause & Burning Mouth 02:23:16 Geographic Tongue; Lip Balm; Mouth Breathing, Symmetrical Chewing 02:27:09 Tongue Tie, Chewing & Speech Function, Intervention 02:32:27 Red Light Therapy, Peptides & Exosomes 02:34:40 Mercury Fillings, Ceramic Composites, Retainers, Sealants 02:39:08 Dentists, Depression, Anxiety, Suicide; Insurance 02:45:05 Recap, Top Behavioral Tools for Oral Health, Tongue Scrapping 02:52:10 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures

In this Huberman Lab Essentials episode, I discuss the critical role of temperature regulation in optimizing athletic and physical performance. I explain why overheating can hinder performance and endurance and how techniques like palmar cooling can help extend physical effort by aiding temperature regulation. I also highlight how specific body areas, such as the palms and face, are key targets for regulating temperature, allowing heat to dissipate efficiently. Lastly, I discuss how temperature can support training recovery while cautioning that extreme cold, such as ice baths immediately after training, can block adaptations. Huberman Lab Essentials are short episodes—approximately 30 minutes—focused on essential science and protocol takeaways from past Huberman Lab episodes. Essentials will be released every Thursday, and our full-length episodes will still be released every Monday. Read the episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman Function: https://functionhealth.com/huberman Timestamps 00:00:00 Huberman Lab Essentials; Physical Performance & Skills, Temperature 00:03:03 Sponsor: AG1 00:04:07 Temperature Homeostasis, Vasoconstriction & Vasodilation 00:06:42 Elevated Heat & Performance Barrier 00:08:26 Regulating Temperature, Glabrous Skin, “AVAs” 00:12:20 Sponsor: Eight Sleep 00:13:49 Strength Training & Heat Effects, Tool: Palmar Cooling 00:17:21 Endurance, Temperature & Willpower 00:20:54 Tool: Resistance Training, Running, Palmar Cooling & Water Temperature 00:24:23 Sponsor: Function 00:26:09 Ice Bath & Blocking Training Adaptations; Tool: Glabrous Skin & Recovery 00:29:31 NSAIDs (Tylenol) & Training 00:31:56 Recap & Key Takeaways Disclaimer & Disclosures

My guest is Stuart McMillan, a renowned track and field coach who has trained dozens of Olympic medalists, professional athletes, and team coaches across a diverse range of sports. We discuss how to use plyometric work to improve mobility, strength, posture, and overall health. We emphasize the enormous benefits of skipping—a form of plyometrics—for joint health, aerobic conditioning, and coordination, as well as its advantages for people of all ages and fitness levels. We also explore the expressive nature of human movement, highlighting how certain movements reveal and can evolve one’s unique personality and abilities. Stu explains how resistance training, skipping, and striding can improve movement efficiency in all aspects of life. Anyone who exercises, as well as serious athletes, will benefit immensely from Stu McMillan’s knowledge of human mechanics and the practical tools he generously shares in this discussion. Read the full episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Our Place: https://fromourplace.com/huberman Wealthfront**: https://wealthfront.com/huberan Helix Sleep: https://helixsleep.com/huberman Function: https://functionhealth.com/huberman **This experience may not be representative of the experience of other clients of Wealthfront, and there is no guarantee that all clients will have similar experiences. Cash Account is offered by Wealthfront Brokerage LLC, Member FINRA/SIPC. The Annual Percentage Yield (“APY”) on cash deposits as of December 27,‬ 2024, is representative, subject to change, and requires no minimum. Funds in the Cash Account are swept to partner banks where they earn the variable‭ APY. Promo terms and FDIC coverage conditions apply. Same-day withdrawal or instant payment transfers may be limited by destination institutions, daily transaction caps, and by participating entities such as Wells Fargo, the RTP® Network, and FedNow® Service. New Cash Account deposits are subject to a 2-4 day holding period before becoming available for transfer. Timestamps 00:00:00 Stuart McMillan 00:02:27 Running, Sprinting, Event Distances 00:09:01 Sponsors: Our Place & Wealthfront 00:12:13 Natural Sprinters, Kids, Sports Specialization 00:17:00 Athletes, Identity, Race Selection 00:23:38 Walking to Sprinting, Gait Patterns, Tool: Flat-Foot Contact 00:30:35 Visual Focus, Body Position, Running, Lifting Weights 00:36:00 Tool: Skipping & Benefits 00:42:18 Sponsors: AG1 & Helix Sleep 00:45:01 Tools: Skipping, Beginners, Jogging Incorporation 00:49:50 Transition Points, Tool: Skipping, Maximum Amplitude 00:53:03 Concentric & Eccentric Phases, Running 00:55:32 Transitioning to Striding, Posture, Center of Mass 01:03:11 Older Adults, Eccentric Control, Tool: Skipping 01:08:00 Naming Importance & Public Health; Skipping, Plyometrics 01:12:18 Sponsor: Function 01:14:06 Cross-Body Coordination, Rotation, Gaits; Phones & Posture 01:22:27 Expression Through Movement, Playfulness, Confidence 01:28:53 Being Yourself, Expression, Essence & Movement 01:36:39 Connecting with Movement, Building Cues, Mood Words 01:45:05 Pressure & Peace; Exercise, Movement & Age 01:51:39 Music, Art, Rhythm, Coaching; Soccer, Greatest Players & Countries 02:00:25 White & Black Athletes, Genetics, Environment 02:08:27 Running Form, Tools: High Knees, Stiff Springs, Hip Extension 02:17:21 Skipping Rope, Aging; Protocols & Rigidity, Principles Alignment 02:22:12 Resistance Training to Improve Movement, Sprinting Kinetics, Individualization 02:32:29 Transferring Weight Room to Track, Staggered Stance, Stretching 02:36:52 Performance-Enhancement, Elite Athletes, Androgen, Reputation 02:46:45 Testosterone Replacement Therapy (TRT), Age; Pharmacology vs. Training 02:52:14 Single Physical Metric & Sprinting; Pressure & Peace 02:58:34 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, Sponsors, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter

In this Huberman Lab Essentials episode, I explain how specific hormones influence both energy levels and the immune system and discuss practical tools for increasing energy throughout the day and managing stress. I discuss the mechanism through which cortisol and epinephrine (adrenaline) impact the brain and body and why it’s important to regulate their levels, considering factors like time of day or stress levels. I also cover the positive benefits of short-term stress and behavioral protocols to increase energy and enhance stress resilience. Additionally, I explain how to optimize hormone levels through tools like sunlight exposure, meal timing, and supplements such as ashwagandha. Huberman Lab Essentials episodes are approximately 30 minutes long and focus on key science and protocol takeaways from past Huberman Lab episodes. Essentials will be released every Thursday, and our full-length episodes will continue to be released every Monday. Read the full episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman BetterHelp: https://betterhelp.com/huberman LMNT: https://drinklmnt.com/huberman Function: https://functionhealth.com/huberman Timestamps 00:00:00 Huberman Lab Essentials; Immunity & Energy 00:01:34 Cortisol, Epinephrine (Adrenaline) 00:03:32 Sponsors: BetterHelp & LMNT 00:06:03 Cortisol & Epinephrine Biology 00:07:50 Timing Cortisol Release, Tool: Morning Sunlight Exposure 00:10:07 Daytime Stress, Learning & Cortisol 00:11:30 Tool: Increase Energy, Ice Baths, Cyclic Breathing, HIIT 00:16:23 Sponsor: AG1 00:17:26 Tool: Building Resilience; Cortisol vs. Epinephrine Effects, Immune System 00:21:29 Brief Stressors & Immune System 00:25:12 Sponsor: Function 00:26:59 Chronic Stress, Cortisol, Hunger & Food Choice 00:29:18 Stress & Gray Hair? 00:29:55 Reduce Cortisol & Supplements, Ashwagandha, Apigenin 00:31:39 Optimizing Cortisol & Epinephrine, Tool: Meals, Circadian Eating, Fasting 00:34:15 Recap & Key Takeaways Disclaimer & Disclosures

My guest is Dr. John Kruse, M.D., Ph.D., a psychiatrist specializing in treating people with attention-deficit/hyperactivity disorder (ADHD). We discuss the many stimulant and nonstimulant ADHD medications available, covering both their potential benefits and risks. We also explore behavioral approaches to managing ADHD, the key role of maintaining a consistent sleep-wake schedule, and the impact of exercise, fish oil supplementation, and video games on ADHD. Additionally, we examine the genetic and environmental factors contributing to the rise in adult and child ADHD diagnoses and offer various options to consider if you or someone you know is struggling with focus. Read the full episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman Joovv: https://joovv.com/huberman LMNT: https://drinklmnt.com/huberman Mateina: https://drinkmateina.com/huberman Timestamps 00:00:00 Dr. John Kruse 00:02:11 Attention-Deficit/Hyperactivity Disorder (ADHD) 00:05:37 Genetics & Environment; COVID Pandemic & ADHD Diagnoses 00:11:43 Sponsors: Eight Sleep & Joovv 00:14:26 ADHD, Interest & Careers 00:20:40 Social Media & Distractibility; ADHD & Lifespan Effect 00:27:39 Hyperfocus, Flow States 00:33:45 Tools: 4 Essential Behaviors for ADHD; Regular Meal Schedule 00:41:06 Sponsor: AG1 00:42:21 Tool: Regular Sleep Timing; Stimulants & Sleep 00:48:06 Insomnia; Tools: Bedtime Structure, Exercise, Phones, Breathing 00:52:30 Nighttime Waking Up; Cyclic Sighing 00:56:35 Exercise; Addiction, Risk, Kids & Stimulants; Catecholamines & Focus 01:04:32 Ritalin, Stimulants, Amphetamines; Amphetamine-Induced Psychosis & Risks 01:16:46 Sponsor: LMNT 01:18:03 Adult ADHD & Medications; Stimulants & Cardiovascular Risk? 01:26:06 Adult ADHD Medication Choices, Psychosis, Cannabis 01:33:49 ADHD Symptoms, Nicotine; Caffeine, Energy Drinks, L-Theanine 01:43:28 Fish Oil, Cardiac Effects & ADHD, Tool: Fish Oil Dose, EPA vs DHA 01:49:38 Sponsor: Mateina 01:51:04 Gut Microbiome 01:52:56 ADHD & Cognitive Behavioral Therapy (CBT), Tool: Task List System 01:57:52 Video Games, Neurofeedback, ADHD Benefit?, Tool: Technology Restriction 02:02:26 Guanfacine, Clonidine, Hypertension, Effects & Timeframe 02:10:13 Modafinil, History & Forms, Dependence 02:19:02 Drug Holidays; Short- vs Long-Acting Drugs, Addiction, Vyvanse 02:28:56 Time Perception, ADHD, Circadian Rhythm Disruption, Phototherapy 02:35:39 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, Sponsors, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures

In this Huberman Lab Essentials episode, I explain how two key hormones control metabolism and discuss tools to enhance their levels to improve metabolic health. I discuss the pathways through which the brain and body interact to produce thyroid hormone and growth hormone, and how these hormones influence essential processes like tissue growth and repair, body composition, and energy production. I explain how thyroid hormone levels are influenced by key nutrients, such as iodine, selenium, and L-tyrosine. I also explain how practices such as exercise, sleep, meditation and sauna can offset age-related declines in growth hormone, to optimize overall hormone health and metabolism. Huberman Lab Essentials are short episodes (approximately 30 minutes) focused on essential science and protocol takeaways from past Huberman Lab episodes. Essentials will be released every Thursday, and our full-length episodes will still be released every Monday. Read the full episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman David: https://davidprotein.com/huberman Timestamps 00:00:00 Huberman Lab Essentials; Hormones & Metabolism 00:01:41 Hypothalamus, Pituitary, Thyroid 00:03:22 Thyroid Hormone Functions, Tools: Iodine, Selenium, L-Tyrosine 00:07:55 Sponsor: Eight Sleep 00:09:27 Thyroid Hormone, Glucose & Metabolism; Thyroid Hormone Disorders 00:11:45 Growth Hormone Functions, Prescription Growth Hormone 00:14:41 Growth Hormone Release, Tools: Sleep & Bedtime Fasting 00:16:07 Growth Hormone Release, Tool: Meditation 00:18:21 Sponsor: AG1 00:19:24 Growth Hormone Release, Tools: Exercise, Warm-Up, Glucose, Cool Down 00:22:04 Growth Hormone Supplements, Arginine 00:24:07 Offsetting Age-Related Growth Hormone Decline 00:25:05 Temperature & Growth Hormone, Tool: Sauna Protocol 00:29:23 Sponsor: David Protein 00:30:38 Peptides, Sermorelin, Secretagogues, Risk 00:33:26 Recap & Key Takeaways Disclaimer & Disclosures

My guest is Dr. Richard Schwartz, Ph.D., therapist, author, and founder of Internal Family Systems (IFS) therapy. We discuss how IFS views the mind as a collection of parts, each shaped by different life experiences—both good and bad, including trauma. To demonstrate how IFS works, Dr. Schwartz guides Dr. Huberman and you, the listener, through an example IFS session. We also explore how IFS and body awareness can help break harmful thought and behavior patterns, promote emotional healing, and build healthier relationships. Read the full episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman BetterHelp: https://betterhelp.com/huberman David Protein: https://davidprotein.com/huberman Wealthfront**: https://wealthfront.com/huberman Function: https://functionhealth.com/huberman **This experience may not be representative of the experience of other clients of Wealthfront, and there is no guarantee that all clients will have similar experiences. Cash Account is offered by Wealthfront Brokerage LLC, Member FINRA/SIPC. The Annual Percentage Yield (“APY”) on cash deposits as of December 27,‬ 2024, is representative, subject to change, and requires no minimum. Funds in the Cash Account are swept to partner banks where they earn the variable‭ APY. Promo terms and FDIC coverage conditions apply. Same-day withdrawal or instant payment transfers may be limited by destination institutions, daily transaction caps, and by participating entities such as Wells Fargo, the RTP® Network, and FedNow® Service. New Cash Account deposits are subject to a 2-4 day holding period before becoming available for transfer. Timestamps 00:00:00 Dr. Richard Schwartz 00:02:11 Internal Family Systems (IFS), Self & Parts 00:07:23 Sponsors: BetterHelp & David Protein 00:09:44 Trauma & Parts: Exiles, Roles, Critic, Managers, Firefighters 00:15:32 Frustration & Anger, Surrender & Perspective 00:19:35 Feelings, Curiosity & Self-Exploration, Protecting Other Parts 00:29:35 Exploration of Inner Frustration, Judgement, Firefighters, Protectors 00:40:04 Titanium Teddy Bear, The Self & Curiosity, Tool: The 8 C’s & Self 00:46:41 Sponsors: AG1 & Wealthfront 00:49:24 IFS Therapy, Self-Exploration 00:53:47 Role Confusion, Conflict, Self & Clarity; Legacy Burdens 01:00:26 Cognitive vs Somatic Feelings; Tools: Localize Body Feeling, Curiosity 01:04:11 IFS & Psychedelics, Ketamine, Big Self, Journal Retractions 01:11:18 Early Morning, Breathwork, Exiles & Healing 01:13:53 Sponsor: Function 01:15:41 Shame, Racism, Protectors & Carrying Burden, Compassion 01:21:29 Unhealthy Romantic Relationships, Child-Parent Relationship 01:27:06 Therapist, Self-Exploration, Protectors & Introduction to Self 01:31:08 Tool: Questions for a Self-Exploration of Internal Protectors 01:39:30 Writing, Forming New Relationships with Parts, Leading with Self 01:42:51 Protectors, Managers, Firefighters, Suicidal & Addiction Behaviors 01:48:37 Overworking, Fear, Mortality 01:54:35 Technology & Distraction, Exiles, Worthlessness 01:58:58 Psychiatry, Medicine, New Ideas 02:02:58 Culture & Expanding Problems, Activism & Self 02:10:39 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, Sponsors, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures

In this Huberman Lab Essentials episode, I explain how hormones regulate hunger, appetite and feelings of satiety (fullness), along with strategies to help control appetite. I describe how the body senses nutrient levels and how the brain processes these signals to stimulate hunger or suppress appetite. I also discuss how certain foods can help curb hunger, while processed foods and emulsifiers can interfere with satiety signals, leading to overeating. Additionally, I cover how lifestyle factors such as exercise and meal timing regulate blood glucose levels, which in turn impact hunger and appetite. Huberman Lab Essentials episodes are approximately 30 minutes long and focus on essential science and protocol takeaways from past Huberman Lab episodes. Essentials will be released every Thursday, while our full-length episodes will continue to be released every Monday. This Huberman Lab Essentials is from the full-length Huberman Lab episode, “How Our Hormones Control Our Hunger, Eating & Satiety.” Read the full episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman David Protein: https://davidprotein.com/huberman Mateina: https://drinkmateina.com/huberman LMNT: https://drinklmnt.com/huberman For all Huberman Lab sponsors, visit hubermanlab.com/sponsors. Timestamps 00:00:00 Huberman Lab Essentials; Hunger & Appetite 00:00:56 Hunger, Hypothalamus, Cortex & Mouth 00:04:46 Sponsor: David Protein 00:06:02 Melanocyte-Stimulating Hormone, AgRP Neurons, Ghrelin, Tool: Regular Meal Timing 00:10:13 Cholecystokinin (CCK), Tool: Omega-3s, Amino Acids & Blunting Appetite 00:13:26 Sponsor: AG1 00:14:30 Highly-Processed Foods, Emulsifiers, Tool: Whole Foods & Satiety Signals 00:19:10 Insulin, Glucose, Type 1 & 2 Diabetes 00:22:16 Sponsor: Mateina 00:23:41 Insulin & Glucagon, Tools: Food Order, Movement & Blood Glucose 00:27:26 Tool: Exercise & Stable Blood Sugar 00:29:38 Metformin, Ketogenic Diet, Blood Glucose 00:31:59 Sponsor: LMNT 00:33:16 Diabetes, Urine & Blood Sugar 00:35:40 Caffeine, Tool: Yerba Mate, Glucagon-Like Peptide -1 (GLP-1), Appetite 00:38:49 Recap & Key Takeaways Disclaimer & Disclosures

My guest is Dr. Roger Seheult, M.D., a board-certified physician in internal medicine, pulmonary diseases, critical care, and sleep medicine at Loma Linda University. We discuss the powerful benefits of light therapy, including infrared light, red light, and sunlight, for improving mitochondrial function in all the body’s organs. We also explore ways to reduce the risk of influenza, colds, and other illnesses that affect the lungs, sinuses, and gut. Topics include the flu shot, whether handwashing truly prevents illness transmission, and treatments for long COVID and mold toxicity. We review the efficacy of N-acetylcysteine (NAC), the power of hydrotherapy for combating infections, and strategies for improving sleep and overall health. Additionally, we discuss air quality. This episode provides actionable, science-based tools for preventing and treating infectious illnesses. Read the full show notes for this episode at hubermanlab.com. Sponsors AG1: https://drinkag1.com/huberman Joovv: https://joovv.com/huberman Eight Sleep: https://eightsleep.com/huberman LMNT: https://drinklmnt.com/huberman Function: https://functionhealth.com/huberman Our Place: https://fromourplace.com/huberman Timestamps 00:00:00 Dr. Roger Seheult 00:02:16 Avoiding Sickness, Immune System, Tool: Pillars of Health, NEWSTART 00:08:03 Sponsors: Joovv & Eight Sleep 00:10:46 Sunlight, Mitochondria, Tool: Infrared Light & Melatonin 00:19:09 Melatonin Antioxidant, Reactive Oxygen Species (ROS)/Free Radicals 00:26:38 Infrared Light, Green Spaces, Health & Mortality 00:31:35 Infrared Light, Mitochondrial Dysfunction, Disease 00:38:46 Sunlight & Cancer Risk?, Tools: UV Light, Clothing & Sunlight Exposure 00:41:01 Sponsors: AG1 & LMNT 00:43:32 Sunlight, Incidence of Influenza or COVID 00:48:41 Tools: Sunlight Exposure Duration, Winter Months 00:55:18 Infrared Lamps?, Winter Sunlight Exposure; Obesity & Metabolic Dysfunction 00:59:48 Cloudy Days; Sunlight, Primitive Therapy, Hospitals 01:11:33 Sponsor: Function 01:13:21 Artificial Lights, Hospitals & Light Therapy?, ICU Psychosis 01:22:16 Sleep & Darkness, Tools: Eye Mask, Bathroom Navigation; Meals & Light 01:28:27 Influenza, Flu Shots, Swiss Cheese Model; Flu Shot Risks? 01:38:13 Masks?, Flu; Handwashing 01:42:16 Sponsor: Our Place 01:43:57 Water, Sodium; Innate Immune System, Fever & Hydrotherapy 01:53:46 Fever, Heat Hydrotherapy, Interferon & Immune System 01:58:25 Cold Hydrotherapy, Vasoconstriction & White Blood Cells 02:09:56 N-Acetyl Cysteine (NAC), Glutathione, White Clots, Flu, Covid 02:19:28 Tool: NAC Dose & Regimen; Mucous, Flu Symptoms 02:25:25 Zinc Supplementation, Copper; Exogenous Interferon 02:28:40 Eucalyptus Oil, Inhalation 02:32:22 Air, Smoking, Vaping, Nicotine Gum 02:36:49 Fresh Air, Forest Bathing, Tool: Go Outdoors 02:40:09 Nature vs Inside Environments, Dark Days/Bright Nights Problem 02:52:38 Long COVID, Mitochondrial Dysfunction, Intermittent Fasting, Sunlight 03:00:43 Covid & Varied Severity, Smell Loss Recovery 03:05:04 Mold Toxicity, Lungs, Germ vs Terrain Theory, Immunocompromised 03:11:46 Trust, Spirituality, Community, Faith; Forgiveness 03:19:46 Hospital Admission, Tool: Asking Questions 03:25:42 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, Sponsors, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures

In this Huberman Lab Essentials episode, I explain how to optimize hormones—particularly testosterone, estrogen, and related sex steroids—to enhance fertility and overall well-being. I discuss the sources of testosterone and estrogen and how their levels fluctuate with age in both males and females. I also cover how behaviors such as exercise, cold and heat exposure, light exposure, illness, and breathing patterns affect hormones. Additionally, I examine specific supplements and replacement therapies, highlighting important precautions to consider when adjusting hormone levels. Huberman Lab Essentials episodes are approximately 30 minutes long and focus on key scientific insights and protocol takeaways from past Huberman Lab episodes. These short episodes will be released every Thursday, while our full-length episodes will continue to be released every Monday. Read the show notes for this episode at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman Function: https://functionhealth.com/huberman Timestamps 00:00:00 Huberman Lab Essentials; Hormones 00:01:15 Testosterone & Estrogen Sources & Age, Adrenals 00:03:34 Sponsor: Eight Sleep 00:05:05 Competition, Males & Testosterone; Dopamine 00:09:27 Testosterone Decreases, Expectant Fathers, Illness 00:11:30 Sleep Apnea, Testosterone, Estrogen, Cortisol, Tool: Nasal Breathing 00:15:57 Sponsor: AG1 00:17:00 Dopamine, Cortisol, Fertility, Tool: Light Viewing Behavior  00:19:31 Heat, Cold & Hormone Levels 00:21:14 Resistance & Endurance Training, Testosterone, Tool: Exercise Order 00:23:26 Estrogen, Menopause, Hormone Therapy 00:25:07 Sponsor: Function 00:26:54 Vitamins, Opioids, Supplements, Tongkat Ali, Cancer Risk 00:31:26 Luteinizing Hormone, hCG, Fadogia Agrestis, Tool: Blood Tests 00:36:00 Recap & Key Takeaways Disclaimer & Disclosures

My guest is Dr. Michael Platt, Ph.D., a professor of neuroscience and psychology at the University of Pennsylvania. We discuss how factors such as hormonal or social status influence what we value, how we make decisions, and even our perceptions across a range of areas, from who and what we find attractive to our political affiliations. We also discuss how humans evaluate and shift power in relationships and form hierarchies in groups. Dr. Platt also shares new science-based tools for improving focus, creativity, and attention. Read the full show notes for this episode at hubermanlab.com. Sponsors AG1: https://drinkag1.com/huberman Our Place: https://fromourplace.com/huberman Wealthfront**: https://wealthfront.com/huberman BetterHelp: https://betterhelp.com/huberman Function: https://functionhealth.com/huberman **This experience may not be representative of the experience of other clients of Wealthfront, and there is no guarantee that all clients will have similar experiences. Cash Account is offered by Wealthfront Brokerage LLC, Member FINRA/SIPC. The Annual Percentage Yield (“APY”) on cash deposits as of December 27,‬ 2024, is representative, subject to change, and requires no minimum. Funds in the Cash Account are swept to partner banks where they earn the variable‭ APY. Promo terms and FDIC coverage conditions apply. Same-day withdrawal or instant payment transfers may be limited by destination institutions, daily transaction caps, and by participating entities such as Wells Fargo, the RTP® Network, and FedNow® Service. New Cash Account deposits are subject to a 2-4 day holding period before becoming available for transfer. Timestamps 00:00:00 Dr. Michael Platt 00:02:12 Humans, Old World Primates & Decision-Making; Swiss Army Knife Analogy 00:07:52 Sponsors: Our Place & Wealthfront 00:11:01 Attention Allocation, Resource Foraging 00:16:40 Social Media; Marginal Value Theorem, Distraction 00:22:22 Tool: Remove Phone from Room; Attention & Urgency 00:25:23 Tool: Self Conversation; Visual Input, Attention as a Skill 00:29:29 Warming-Up Focus, Tool: Visual Aperture & Attention 00:38:57 Sponsor: AG1 00:40:13 Control of Attention, Tool: Changing Environment 00:44:07 Attention Continuum, Professions, Measuring Business Skill with Neuroscience 00:53:06 Theory of Mind, Covert Attention, Attentional Spotlights 01:00:05 Primates, Hormone Status, Brain Size, Monogamy 01:09:31 Monkeys, Neuronal Multiplexing & Context; Equitable Relationships 01:20:05 Sponsor: BetterHelp 01:21:11 Relationships, Power Dynamics, Neuroethology 01:29:34 Humans, Females & Hormone Status; Monkeys, Social Images, Hormones 01:38:03 Humans, Attractiveness, Value-Based Decision Making 01:44:32 Altruism, Group Selection & Cooperation, Selflessness 01:49:08 Males, Testosterone, Behavior Changes 01:55:46 Sponsor: Function 01:57:34 Oxytocin, Pro-Social Behaviors, Behavioral Synchrony 02:08:13 MDMA, Oxytocin, Anxiety; Social Touch, Despair & Isolation 02:17:12 Isolation, Social Connections & Strangers, Tool: Deep Conversation Questions 02:21:17 Bridging the Divide, Tribes & Superficial Biases 02:26:58 Testosterone, Risk-Taking Behavior 02:30:52 Decision-Making, Tool: Accurate or Fast? 02:38:31 Decision-Making, Impact of Time & Fatigue 02:45:23 Advertising, Status, Celebrity, Monkeys 02:52:19 Hierarchy; Abundance & Scarcity, Money & Happiness, Loss Aversion 03:02:47 Meme Coins, Celebrity Endorsement, Social Sensitivity 03:12:22 Decisions & Urgency; Bounded & Ecological Rationality 03:18:09 Longevity Movement; Mortality & Motivation 03:24:48 Retirement?, Serial Pursuits & Pivoting 03:30:17 Apple or Samsung?, Brand Loyalty, Empathy 03:38:15 Political Affiliation, Empathy 03:46:22 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, Sponsors, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures

In this Huberman Lab Essentials episode, I explain the crucial role hormones play in shaping the sexual development of both the brain and body. I discuss how biological masculinization and feminization depend on factors such as genetics, hormone ratios, and receptor availability. I also explore how hormones like testosterone, estrogen, and other steroid hormones influence sexual characteristics and brain development. Additionally, I examine the impact of environmental factors—such as herbicides like atrazine, cannabis, alcohol, and even cell phones—on hormone function and reproductive health. Huberman Lab Essentials are short episodes (approximately 30 minutes) focused on key science and protocol takeaways from past Huberman Lab episodes. Essentials are released every Thursday, while full-length episodes continue to be released every Monday. Read the full episode show notes, including referenced articles, resources, and people mentioned at hubermanlab.com. This Huberman Lab Essentials episode is from the full-length episode, available here: https://go.hubermanlab.com/PQYuc9i Thank you to our sponsors AG1: https://drinkag1.com/huberman Function: https://functionhealth.com/huberman Our Place: https://fromourplace.com/huberman BetterHelp: https://betterhelp.com/huberman Timestamps 00:00:00 Huberman Lab Essentials; Hormones, Sexual Development 00:01:25 Chromosomal Sex, Gonadal Sex, Hormonal Sex, Morphology 00:06:08 Sponsor: Function 00:07:56 Steroid Hormones, Sexual Characteristics 00:10:59 Primary & Secondary Sexual Characteristics, Dihydrotestosterone (DHT), Kisspeptin 00:15:12 Masculinization of Brain, Estrogen 00:16:29 Sponsors: Our Place, BetterHelp 00:19:15 Herbicides, Atrazine, Hormone Effects, Sperm Counts 00:25:04 Female Sexual Development, Androgen Insensitivity Syndrome 00:28:37 Sponsor: AG1 00:29:41 Cannabis & Aromatase Activity, Gynecomastia; Alcohol & Estrogen Activity 00:32:34 Cell Phones & Gonads 00:35:24 Beard & Hair Growth, DHT 00:38:42 Hyenas, Hormones, Androstenedione; Plants 00:43:44 Recap & Key Takeaways Disclaimer & Disclosures

In this episode, my guest is Pavel Tsatsouline, a world-renowned strength and conditioning coach, former military special forces training instructor, author, and founder of StrongFirst—an online school focused on “low-tech, high-concept” training to build strength for men and women of all fitness levels. We discuss the most effective and efficient ways to build strength, endurance, and flexibility. We cover bodyweight-only, free-weight, and machine-based protocols and describe training splits and lesser-known but highly effective ways to train, especially for people with limited time. We also discuss local versus systemic nervous system and muscle recovery, how to complete training sessions with increased energy, why training to “failure” is not advised, optimal rest-between-sets protocols to improve performance, and how to vary effort levels across each week and month to ensure regular progress. This episode brings you highly practical, science-supported, and real-world-tested training methods to build strength, endurance, and flexibility from one of the world’s top experts. Show notes: https://go.hubermanlab.com/YC80Wvt Sponsors AG1: https://drinkag1.com/huberman Eight Sleep: https://eightsleep.com/huberman Levels: https://levels.link/huberman LMNT: https://drinklmnt.com/huberman Joovv: https://joovv.com/huberman Maui Nui: https://mauinuivenison.com/huberman Timestamps 00:00:00 Pavel Tsatsouline 00:02:29 Fitness, Strength, Model Athlete 00:07:19 Tool: Essential Training Movements 00:13:46 Sponsors: Eight Sleep & Levels 00:16:29 Dips, Pull-Ups, Farmer Carry, Tools: Kettle Bell Mile, Grip Strength & Longevity 00:29:57 Concentric vs Eccentric Only Movements, Isometric, Tool: Pause Reps 00:38:38 Sponsor: AG1 00:39:53 “Greasing the Groove”, Cramming Analogy, Strength is a Skill 00:48:27 Tool: Greasing the Groove Protocol 00:54:12 Tool: Movement & Motivation; Nervous System 01:00:00 Frequency & Recovery, Heterochronicity, Soviet vs American Training 01:10:25 Soviet vs American Strength Schools, Periodization, Recovery 01:20:00 Sponsors: LMNT & Joovv 01:22:45 Bell Squat, Non-Spine Compressing Leg Work, Tool: Zercher Squat 01:27:15 Machines, Beginners vs Advanced? 01:28:41 Shorter Cycles? Linear & Wave Progression, Step Loading, Variable Overload 01:32:04 Strength & Endurance, Bodybuilding, “Bro Split” 01:40:28 Endurance, Cost of Adaptation, Heart Adaptations 01:46:38 Rest Periods, Interval Training, Tool: German Interval Training  01:51:34 Tool: Cardiovascular Training, Glycolytic Power Repeats; Muscle Growth 01:57:31 Sponsor: Maui Nui 01:59:00 Rest Period Activities, Tool: Protecting Back 02:04:33 Endurance Training, Anti-Glycolytic Revolution, Specialized vs Variety  02:11:30 Not Seeking the “Pump”, Repeated Sprint Ability, Tool: Anti-Glycolytic Endurance Training 02:19:06 Seek Soreness or Pump?, Hypertrophy 02:23:05 Tool: Planning Strength & Endurance Training, Individualization 02:32:27 Training Quality, Practiced Skill 02:35:39 Non-Athletes, Strength & Endurance, Training Duration 02:40:20 Post-Exercise Fatigue, Tools: Fragmentation, Feedback, Volume 02:48:01 Pre-Workout Stimulants 02:53:51 Performance & Arousal, Breathing, Disinhibition, Emotion 03:03:42 Train to Failure?, Recovery 03:08:40 Flexibility, Range of Motion Training, Kettle Bell, Tool: Wall Squat 03:14:57 Training for Flexibility; Training as a Practice 03:17:46 Older Adults & Strength Training, Consistency Over Intensity 03:25:08 Body-Weight vs Barbell vs Kettlebell Training 03:34:06 Kettlebell Training, Swings, Power & Endurance 03:41:55 Training Choices, Tool: Simple, Consistent Program 03:47:38 Kids & Training, General vs Specialization? 03:51:21 Core Work, Abdominals, Tools: Tension & Attention; ‘Pressurize’ Abs 04:03:34 Breathing, Force, Strength 04:05:02 Directing Gaze While Weightlifting 04:12:37 Zero-Cost Support, YouTube, Spotify & Apple Follow & Reviews, Sponsors, YouTube Feedback, Protocols Book, Social Media, Neural Network Newsletter