
Dr. Jack Feldman: Breathing for Mental & Physical Health & Performance
This episode my guest is Dr. Jack Feldman, Distinguished Professor of Neurobiology at the University of California, Los Angeles and a pioneering world expert in the science of respiration (breathing). We discuss how and why humans breathe the way we do, the function of the diaphragm and how it serves to increase oxygenation of the brain and body. We discuss how breathing influences mental state, fear, memory, reaction time, and more. And we discuss specific breathing protocols such as box-breathing, cyclic hyperventilation (similar to Wim Hof breathing), nasal versus mouth breathing, unilateral breathing, and how these each affect the brain and body. We discuss physiological sighs, peptides expressed by specific neurons controlling breathing, and magnesium compounds that can improve cognitive ability and how they work. This conversation serves as a sort of "Master Class" on the science of breathing and breathing-related tools for health and performance. For the full show notes, visit hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Introducing Dr. Jack Feldman (00:03:20) Sponsors: LMNT & Waking Up (00:10:35) Why We Breathe (00:14:35) Neural Control of Breathing: “Pre-Botzinger Complex” (00:16:20) Nose vs Mouth Breathing (00:18:18) Skeletal vs. Smooth Muscles: Diaphragm, Intracostals & Airway Muscles (00:20:11) Two Breathing Oscillators: Pre-Botzinger Complex & Parafacial Nucleus (00:26:20) How We Breathe Is Special (Compared to Non-Mammals) (00:33:40) Stomach & Chest Movements During Breathing (00:36:23) Physiological Sighs, Alveoli Re-Filling, Bombesin (00:49:39) If We Don’t Sigh, Our Lung (& General) Health Suffers (01:00:42) Breathing, Brain States & Emotions (01:05:34) Meditating Mice, Eliminating Fear (01:11:00) Brain States, Amygdala, Locked-In Syndrome, Laughing (01:16:25) Facial Expressions (01:19:00) Locus Coeruleus & Alertness (01:29:40) Breath Holds, Apnea, Episodic Hypoxia, Hypercapnia (01:35:22) Stroke, Muscle Strength, TBI (01:38:08) Cyclic Hyperventilation (01:39:50) Hyperbaric Chambers (01:40:41) Nasal Breathing, Memory, Right vs. Left Nostril (01:44:50) Breathing Coordinates Everything: Reaction Time, Fear, etc. (01:57:13) Dr. Feldman’s Breathwork Protocols, Post-Lunch (02:02:05) Deliberately Variable Breathwork: The Feldman Protocol (02:06:29) Magnesium Threonate & Cognition & Memory (02:18:27) Gratitude for Dr. Feldman’s Highly Impactful Work (02:20:53) Zero-Cost Support, Sponsors, Instagram, Twitter, Supplements Title Card Photo Credit: Mike Blabac Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices
10 Jan 20222h 18min

The Science of Making & Breaking Habits
In this episode, I review the science of habit formation and habit elimination and how the process of neuroplasticity (brain rewiring) underlies these processes. I describe two new systems for habit formation. The first system is grounded in the neuroscience of brain states and our ability to perform (and to avoid) certain tasks at different phases of the 24-hour day. The second system focuses on 21-day habit formation and consolidation. I also discuss "task bracketing" as an approach to enhancing habit formation and eliminating unwanted habits and the neural circuits that underlie task bracketing in the basal ganglia (a brain region for generating and stopping behaviors). I also review the science of dopamine rewards and how to apply that knowledge to shaping habits. The science and tools in this episode ought to be helpful for anyone looking to build better habits and eliminate unwanted habits for school, work, fitness, relationships, creative endeavors, and more—indeed for any person or situation where behavioral changes are needed. For the full show notes, visit hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Introducing Habits; New Programs (00:02:46) Sponsors: LMNT & Waking Up (00:06:52) Habits versus Reflexes, Learning, Neuroplasticity (00:08:51) Goal-Based Habits vs. Identity-Based Habits (00:11:40) How Long It (Really) Takes to Form a Habit; Limbic-Friction (00:16:07) Linchpin Habits (00:18:55) Mapping Your Habits; Habit Strength, Context-Dependence (00:22:55) Automaticity (00:24:03) Tool 1: Applying Procedural Memory Visualizations (00:27:48) Hebbian Learning, NMDA receptors (00:31:00) Tool 2: Task Bracketing; Dorsolateral Striatum (00:37:08) States of Mind, Not Scheduling Time Predicts Habit Strength (00:38:16) Tool 3: Phase-Based Habit Plan: Phase 1 (00:46:29) Tool 3: Phase-Based Habit Plan: Phase 2 (00:55:24) Tool 3: Phase-Based Habit Plan: Phase 3 (01:01:34) Habit Flexibility (01:04:57) Should We Reward Ourselves? How? When? When NOT to. (01:10:30) Tool 4: “Dopamine Spotlighting” & Task Bracketing (01:18:22) Tool 5: The 21-Day Habit Installation & Testing System (01:28:26) Breaking Habits: Long-Term (Synaptic) Depression (01:35:49) Notifications Don’t Work (01:37:50) Tool 6: Break Bad Habits with Post-Bad-Habit “Positive Cargo” (01:44:26) Addictions as Habits: https://hubermanlab.com/dr-anna-lembke-understanding-and-treating-addiction (01:45:28) Conclusion & Synthesis (01:48:27) Zero-Cost Support, Sponsors, Supplements, Instagram, Twitter Title Card Photo Credit: Mike Blabac Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices
3 Jan 20221h 47min

Dr. David Sinclair: The Biology of Slowing & Reversing Aging
In this episode, I am joined by Dr. David Sinclair, tenured Professor of Genetics at Harvard Medical School and an expert researcher in the field of longevity. Dr. Sinclair is also the author of the book Lifespan: Why We Age & Why We Don't Have To, and the host of the Lifespan Podcast, which launches January 5, 2022. In this interview, we discuss the cellular and molecular mechanisms of aging and what we all can do to slow or reverse the aging process. We discuss fasting and supplementation with resveratrol, NAD, metformin, and NMN. We also discuss the use of caffeine, exercise, cold exposure, and why excessive iron load is bad for us. We discuss food choices for offsetting aging and promoting autophagy (clearance of dead cells). And we discuss the key blood markers everyone should monitor to determine your biological versus chronological age. We also discuss the future of longevity research and technology. This episode includes lots of basic science and specific, actionable protocols, right down to the details of what to do and when. By the end, you will have in-depth knowledge of the biology of aging and how to offset it. Read the full show notes for this episode at hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Dr. David Sinclair, Harvard Medical School 00:03:45 Sponsors: AG1, LMNT & Waking Up 00:07:45 “Aging as a Disease” vs. Longevity & Anti-Aging 00:10:23 What Causes Aging? The Epigenome 00:15:53 Cosmetic Aging 00:17:15 Development Never Stops, Horvath Clock 00:20:12 Puberty Rate as a Determinant of Aging Rate 00:23:00 Fasting, Hunger & Food Choices 00:32:44 Fasting Schedules, Long Fasts, (Macro)Autophagy 00:34:50 Caffeine, Electrolytes 00:35:56 Blood Glucose & the Sirtuins; mTOR 00:37:55 Amino Acids: Leucine, “Pulsing” 00:44:35 Metformin, Berberine 00:50:29 Resveratrol, Wine 00:53:20 What Breaks a Fast? 00:56:45 Resveratrol, NAD, NMN, NR; Dosage, Timing 01:09:10 Are Artificial Sweeteners Bad for Us? 01:12:04 Iron Load & Aging 01:15:05 Blood Work Analysis 01:19:37 C-Reactive Protein, Cholesterol: Serum & Dietary 01:26:02 Amino Acids, Plants, Antioxidants 01:33:45 Behaviors That Extend Lifespan, Testosterone, Estrogen 01:40:35 Neuroplasticity & Neural Repair 01:46:19 Ice Baths, Cold Showers, “Metabolic Winter” 01:48:07 Obesity & How It Accelerates Aging, GnRH 01:52:10 Methylation, Methylene Blue, Cigarettes 01:56:17 X-Rays 01:59:00 Public Science Education, Personal Health 02:05:40 The Sinclair Test You Can Take: www.doctorsinclair.com 02:08:13 Zero-Cost Support & Resources, Sponsors, Supplements, Instagram Disclaimer & Disclosures Learn more about your ad choices. Visit megaphone.fm/adchoices
27 Dec 20212h 7min

Science of Social Bonding in Family, Friendship & Romantic Love
This episode I discuss the science of social bonding- the process by which we form attachments. I explain the neural and hormonal basis for "social homeostasis" (our drive for a given amount of socializing) which reveals why we get lonely, why we seek out connection with others and how power dynamics (hierarchies) shape those connections. I also discuss the neurochemical basis of introversion and extroversion, of trust and how shared experiences that promote similar physiological states in two or more individuals, leads to more rapid bonding. I also discuss how food and oxytocin play key roles in social bonding. This episode covers quality peer-reviewed science and practical tools for anyone seeking to find, build or end relationships. Read the full show notes for this episode at hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Social Bonding: Child-Parent, Romantic, Friendship, Breakups 00:03:10 Sponsors: AG1, LMNT & Waking Up 00:07:08 Social Bonding as a Biological Process 00:10:03 Social Isolation 00:13:32 Social Homeostasis & Neural Circuits for Social Drive 00:18:55 Brain Areas & (Neuro)Chemistry of Social Drive 00:22:48 What Is Social Homeostasis & Dopamine 00:27:00 When We Lack Social Interactions: Short- Versus Long-Term 00:28:10 Introverts & Extroverts 00:31:00 “Good” Versus “Bad” Social Interactions & Hierarchies 00:33:54 Loneliness & Dorsal Raphe Nucleus & Social Hunger 00:37:33 Tools 00:38:05 Socializing & Food Appetite: Crossover Craving 00:42:45 Falling in Love 00:45:05 Tools for Social Bonds: Merging Physiologies; Story 00:53:54 Childhood Attachment Patterns in Adulthood 01:03:45 Attachment Styles: Autonomic Versus Intellectual Attachment 01:06:10 Emotional Empathy & Cognitive Empathy, Arguing 01:09:45 Allan N. Schore & “Right Brain Psychotherapy” 01:10:40 Oxytocin & Trust, In Males Versus Females, Hormonal Glue 01:16:10 Repairing Broken Bonds to Self & Others 01:18:56 Social (Media) Butterflies: Biological Basis 01:24:08 Key Points for Bonding & Understanding Social Bonds 01:27:07 Breaking Up 01:28:36 Synthesis 01:31:17 Zero-Cost Support, Sponsors, Supplements, Instagram, Twitter Disclaimer & Disclosures Learn more about your ad choices. Visit megaphone.fm/adchoices
20 Dec 20211h 30min

Dr. David Berson: Understanding Your Brain's Logic & Function
In this episode, my guest is Dr. David Berson, Ph.D., Professor & Chairman of Neuroscience at Brown University. Dr. Berson discovered the neurons in your eye that set your biological rhythms for sleep, wakefulness, mood and appetite. He is also a world-renowned teacher of basic and advanced neuroscience, having taught thousands of university lectures on this topic. Many of his students have become world-leading neuroscientists and teachers themselves. Here Dr. Berson takes us on a structured journey into and around the nervous system, explaining: how we perceive the world and our internal landscape, how we balance, see, and remember. Also, how we learn and perform reflexive and deliberate actions, how we visualize and imagine in our mind, and how the various circuits of the brain coordinate all these incredible feats. We discuss practical and real-life examples of neural circuit function across the lifespan. Dr. Berson gives us a masterclass in the nervous system—one that, in just less than two hours, will teach you an entire course's worth about the brain and how yours works. Read the full show notes for this episode at hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Dr. David Berson 00:03:11 Sponsors: AG1, LMNT & Waking Up 00:08:02 How We See 00:10:02 Color Vision 00:13:47 “Strange” Vision 00:16:56 How You Orient In Time 00:25:45 Body Rhythms, Pineal Function, Light & Melatonin, Blueblockers 00:34:45 Spending Time Outdoors Improves Eyesight 00:36:20 Sensation, Mood, & Self-Image 00:41:03 Sense of Balance 00:50:43 Why Pigeons Bob Their Heads, Motion Sickness 01:00:03 Popping Ears 01:02:35 Midbrain & Blindsight 01:10:44 Why Tilted Motion Feels Good 01:13:24 Reflexes vs. Deliberate Actions 01:16:35 Basal Ganglia & the “2 Marshmallow Test” 01:24:40 Suppressing Reflexes: Cortex 01:33:33 Neuroplasticity 01:36:27 What is a Connectome? 01:45:20 How to Learn (More About the Brain) 01:49:04 Book Suggestion, My Berson Appreciation 01:50:20 Zero-Cost Ways to Support the HLP, Guest Suggestions, Sponsors, Supplements Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices
13 Dec 20211h 49min

Erasing Fears & Traumas Based on the Modern Neuroscience of Fear
In this episode, I discuss fear and trauma, including the neural circuits involved in the "threat reflex" and how specific experiences and memories come to activate that system. I also discuss how our body is involved in trauma and fear. First, I describe the logic of fear mechanisms and how "top-down" processing-- meaning connections from the parts of the brain that assign meaning to our feelings, are involved in fear and erasing fears and traumas. Then I discuss what successful fear and trauma treatment must include and consider various treatments for whether they meet that standard, such as EMDR, Cognitive Behavioral Therapy, Ketamine, other drug-assisted therapies, and more. I also review new data on how 5 minutes per day of deliberate, self-imposed stress can erase fear and depression. And I review the role that social connection plays in erasing or maintaining fears by activating specific molecular pathways in the brain and body. Finally, I review supplementation with over-the-counter compounds for their effects on anxiety and fear and when to take them, if at all. Read the full show notes for this episode at hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Introducing Fear, Trauma & Trauma 00:02:31 Sponsors: AG1, LMNT & Waking Up 00:06:49 What is Fear? 00:11:45 Autonomic Arousal: “Alertness” vs. “Calmness” 00:13:44 Hypothalamic-Pituitary-Adrenal Axis (HPA axis) 00:17:36 “The Threat Reflex”: Neural Circuits for Fear 00:28:24 Controlling Fear: Top-Down Processing 00:32:27 Narratives: “Protective or Dangerous” 00:35:58 Attaching Fear to Events: Classical Conditioning & Memory 00:41:45 How Fear Learning Occurs: Long Term Potentiation, NMDA 00:46:10 Extinguishing (Reducing) Fears 00:50:25 Cognitive (Narrative) Therapies for Fear 00:57:56 Repetition of Narrative, Overwriting Bad Experiences with Good 01:05:28 EMDR: Eye Movement Desensitization Reprocessing 01:14:00 Social Connection & Isolation Are Chemically Powerful 01:18:23 Trans-Generational Trauma 01:25:00 PTSD Treatments: Ketamine, MDMA, Oxytocin 01:39:25 How Do You Know If You Are Traumatized? 01:46:16 Deliberate Brief Stress Can Erase Fears & Trauma 01:49:50 Erasing Fears & Traumas in 5 Minutes Per Day 01:59:42 Nutrition, Sleep, & Other General Support Erasing Fear & Trauma 02:02:30 Supplements for Anxiety, Fear: Saffron, Inositol, Kava 02:10:00 Synthesis 02:11:46 Zero-Cost Support, Sponsors, Supplements, Instagram, Twitter Disclaimer & Disclosures Learn more about your ad choices. Visit megaphone.fm/adchoices
6 Dec 20212h 10min

Dr. David Buss: How Humans Select & Keep Romantic Partners in Short & Long Term
In this episode, my guest is Dr. David Buss, Ph.D., Professor of Psychology at the University of Texas, Austin, and one of the founding members of the field of evolutionary psychology. Dr. Buss describes his work on how people select mates for short and long-term relationships, the dynamics of human courtship, and mate value assessment — meaning how people measure up as potential partners. We also discuss the causes of infidelity and differences for infidelity in men and women. He explains how people evaluate and try to alter other people’s mate value as a means to secure and even poach mates. We discuss monogamous and non-monogamous relationships in humans. And we discuss what Dr. Buss calls “the dark triad” — features common in stalkers and narcissists that relate to sexual and psychological violence in relationships. This episode is sure to be of interest to anyone single or in a relationship who seeks to know how people select mates and anyone who is interested in forming and maintaining healthy romantic partnerships. Read the full show notes for this episode at hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Introducing Dr. David Buss 00:04:27 Sponsors: AG1, LMNT & Waking Up 00:08:33 Choosing a Mate 00:13:40 Long Term Mates: Universal Desires 00:18:31 What Women & Men Seek in Long-Term Mates 00:25:10 Age Differences & Mating History 00:32:20 Deception in Courtship 00:37:30 Emotional Stability 00:38:40 Lying About Long-Term Interest 00:41:56 Short-Term Mating Criteria, Sliding Standards & Context Effects 00:46:25 Sexual Infidelity: Variety Seeking & (Un)happiness & Mate Switching 00:54:25 Genetic Cuckolds, How Ovulation Impacts Mate Preference 00:57:00 Long-Term vs. Short-Term Cheating, Concealment 00:59:15 Emotional & Financial Infidelity 01:04:35 Contraception 01:06:22 Status & Mating Success 01:10:10 Jealousy, Mate Value Discrepancies, Vigilance, Violence 01:24:13 Specificity of Intimate Partner Violence 01:25:12 Mate Retention Tactics: Denigration, Guilt, Etc. 01:27:33 Narcissism, Machiavellianism, Psychopathy 01:33:25 Stalking 01:39:15 Influence of Children on Mate Value Assessments 01:43:24 Attachment Styles, Mate Choice & Infidelity 01:46:40 Non-Monogamy, Unconventional Relationships 01:54:00 Mate Value Self Evaluation, Anxiety About the Truth 02:02:12 Self Deception 02:05:35 The Future of Evolutionary Psychology & Neuroscience 02:06:56 Books: When Men Behave Badly, The Evolution of Desire, Textbooks 02:10:42 Concluding Statements, Zero-Cost Support: Subscribe, Sponsors, Supplements Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices
29 Nov 20212h 10min

The Science of Gratitude & How to Build a Gratitude Practice
In this episode, I discuss the science of gratitude, which has been shown in peer-reviewed studies to have tremendous positive effects on mental and physical health. I explain, however, that most commonly used gratitude practices are ineffective (such as gratitude lists). The key elements of highly effective gratitude practices are described, including the essential need for story (narrative), receiving or perceiving gratitude rather than giving it, and the role that theory of mind plays in this context. I also discuss why we can't simply make up feelings of gratitude and how reluctance undermines the process. I also explain the neural circuit mechanisms that underlie the reductions in fear and increases in motivation and lowering of inflammatory chemicals that effective narrative-based gratitude can trigger. Throughout the episode, I use the science of gratitude to design a brief but highly effective protocol. Read the full show notes for this episode at hubermanlab.com. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps 00:00:00 Introduction: Gratitude Science & Surprises 00:01:50 Controlling Heart Rate with Story 00:04:48 Sponsors: AG1, LMNT & Waking Up 00:09:11 Major, Long-Lasting Benefits of Gratitude Practice 00:12:20 Prosocial vs. Defensive Thinking, Behaviors, & Neural Circuits 00:17:50 Why We All Need an Effective Gratitude Practice 00:21:22 Neurochemistry & Neural Circuits of Gratitude 00:25:10 Prefrontal Cortex Set Context 00:30:10 Ineffective Gratitude Practices; Autonomic Variables 00:34:55 Key Features of Effective Gratitude Practices: Receiving Thanks & Story 00:42:30 Theory of Mind Is Key 00:45:50 Building Effective Gratitude Practices: Adopting Narratives, Duration 00:52:28 Narratives That Shift Brain-Body Circuits 00:56:15 You Can’t Lie About Liking Something; Reluctance in Giving 00:59:55 How Gratitude Changes Your Brain: Reduces Anxiety, Increases Motivation 01:03:00 5 Minutes (Is More Than Enough), 3X Weekly, Timing Each Day 01:05:44 Empathy & Anterior Cingulate Cortex 01:07:35 Reducing Inflammation & Fear with Gratitude 01:10:56 Serotonin, Kanna/Zembrin 01:16:00 Neuroplasticity, Pharmacology, Brain Machine Interfaces 01:18:50 The Best Gratitude Practices: & How To, My Protocol 01:24:25 Subscribe & Feedback, Supporting Sponsors, Supplements Disclaimer & Disclosures Learn more about your ad choices. Visit megaphone.fm/adchoices
22 Nov 20211h 22min