Science of Stress, Testosterone & Free Will | Dr. Robert Sapolsky
Huberman Lab30 Aug 2021

Science of Stress, Testosterone & Free Will | Dr. Robert Sapolsky

In this episode, I interview Dr. Robert Sapolsky, Ph.D., Professor of Biology, Neurology & Neurosurgery at Stanford University. We discuss stress, what defines short-term versus long-term stress, and how stress can be beneficial or detrimental, depending on the context. We also discuss stress mitigation and how our sense of control over stress mitigation techniques, including exercise, determine health outcomes. Dr. Sapolsky explains some of the key effects of the hormone testosterone — how it can amplify pre-existing tendencies for aggression or sexual behavior, but that it does not produce those behaviors per se. He also explains how testosterone impacts our social hierarchies, sense of confidence, and willingness to embrace challenges of different kinds. He also explains how our behaviors and perceptions shape testosterone levels. And we discuss estrogen and the powerful role it plays in brain development, health and longevity. Finally, we discuss free will, what it means to have free will, and if we have any free will, including how knowledge alone might allow us to make better decisions for ourselves and society. 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: Dr. Robert Sapolsky 00:02:25 Sponsors: AG1, LMNT & Waking Up 00:06:30 Stress: Short & Long-Term, Good & Bad 00:09:11 Valence & Amygdala 00:11:00 Testosterone: Common Myths vs. Actual Truths 00:15:15 Behaviors that Affect Testosterone 00:17:20 Mindsets & Contexts that Affect Testosterone 00:20:28 How Finger Length Ratios Reflect Prenatal Hormone Levels 00:22:30 Aggression: Male-Female, Female-Male, & Female-Female 00:24:05 Testosterone: The Challenge Hypothesis 00:29:20 How Dopamine Impacts Testosterone & Motivation 00:32:32 Estrogen: Improves Brain & Longevity BUT TIMING IS KEY 00:39:40 Are Testosterone & Sperm Counts in Males Really Dropping? 00:42:15 Stress Mitigation & Our Sense of Control 00:51:35 How Best to Buffer Stress 00:57:04 Power of Perception, Choice & Individual Differences 01:00:32 Context-Setting, Prefrontal Cortex & Hierarchy 01:11:20 How Dr. Sapolsky Accomplishes Deep Thinking 01:13:17 Do We Have Free Will? 01:20:50 How to Apply Knowledge & Learning 01:23:44 Robert’s New Book: “Determined: The Science of Life Without Free Will” 01:28:27 Reflections, Support of Podcast, & Supporting Stress Research Disclaimer & Disclosures Learn more about your ad choices. Visit megaphone.fm/adchoices

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AMA #9: Kratom Risks, Does Infrared Sauna Work & Journaling Benefits

AMA #9: Kratom Risks, Does Infrared Sauna Work & Journaling Benefits

Welcome to a preview of the ninth Ask Me Anything (AMA) episode, part of the Huberman Lab Premium subscription. The Huberman Lab Premium subscription was launched for two main reasons. First, it was launched in order to raise support for the standard Huberman Lab podcast channel — which will continue to come out every Monday at zero-cost. Second, it was launched as a means to raise funds for important scientific research. A significant portion of proceeds from the Huberman Lab Premium subscription will fund human research (not animal models) selected by Dr. Huberman, with a dollar-for-dollar match from the Tiny Foundation. Subscribe to Huberman Lab Premium at https://hubermanlab.com/premium. Timestamps (00:00:00) Introduction (00:01:42) What Are the Short and Long-Term Effects of Taking Kratom? (00:24:12) Huberman Lab Premium In the full AMA episode, we discuss: How Does Infrared Sauna Compare to Traditional Sauna? Neurological Impact and Best Practices for Journaling for Goals, Habits and Growth Title Card Photo Credit: Mike Blabac Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices

28 Juli 202326min

How to Shape Your Identity & Goals | Dr. Maya Shankar

How to Shape Your Identity & Goals | Dr. Maya Shankar

In this episode, my guest is Maya Shankar, Ph.D., a cognitive scientist, former senior advisor to the White House and Chair of the White House Social and Behavioral Sciences Team. She is the creator and host of the podcast, A Slight Change of Plans. We discuss how our identities develop and change, how our beliefs and internal narratives shape our perception of self, and how to use structured introspection about our values to determine our goals. We discuss how to cope and grow through uncertain situations, especially those that force us to reexamine our roles and identity. Dr. Shankar shares her experience of redefining her identity after an early career-ending setback. She also explains numerous science-based strategies to effectively define goals, structure our goal pursuits and maintain consistent motivation. This episode provides a science-supported toolkit and roadmap to assess your identity and goals and positively transform in the face of change. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Use Ask Huberman Lab, our new AI-powered platform, for a summary, clips, and insights from this episode. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Dr. Maya Shankar (00:02:53) Sponsors: LMNT & Waking Up (00:05:15) Identity Foreclosure, Identity Paralysis, Throughlines (00:12:10) Identity & Adolescence; “Essence” & Shame (00:16:58) Delight & Awe (00:23:00) Delight & Possibilities for Self (00:29:28) Playing Violin, Childhood (00:35:17) Sponsor: AG1 (00:35:58) Intrinsic Motivation; Juilliard & Courage (00:45:43) Competitive Environments; Curiosity & Growth (00:53:46) Re-Creating of Self (01:00:51) Pop-Science, Science Accessibility (01:06:32) Passions & Curiosity (01:13:20) Change, Cognitive Closure, End-of-History Illusion (01:22:29) Self-Awareness & Critical Feedback (01:30:48) Tools: Flexible Mindset; Reframing & Venting; Gratitude (01:40:13) Tool: Framing Goals (01:47:13) Tool: Agency in Goal Pursuit (01:52:25) Tool: Like-Minded People & Goal Pursuit; Challenging Beliefs (02:01:27) Cultivating Open-Mindedness & Empathy (02:08:15) Building Self Narratives: Empathy, Burnout (02:13:56) Tools: Goal Setting (02:19:54) Tool: “Middle Problem”, Maintaining Motivation (02:24:55) Tool: Aversion & Memory, Peak-End Rule (02:31:41) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous, Neural Network Newsletter, Social Media Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices

24 Juli 20232h 31min

How to Enhance Performance & Learning by Applying a Growth Mindset

How to Enhance Performance & Learning by Applying a Growth Mindset

In this episode, I discuss how to build and apply a growth mindset — the practice of self-rewarding and focusing on learning and skill development through effort — to improve learning and performance. I also discuss how our internal narratives drive our ability to make progress. I contrast the growth mindset vs. the fixed mindset and describe how the type of feedback or praise we receive shapes our mindsets, and the huge advantage of rewarding and celebrating “verbs” (actions) rather than adjectives (performance labels). I also discuss data showing how stress can enhance performance and explain why the growth mindset works synergistically with the “stress-is-enhancing mindset,” and how to combine them. Whether you are a student, coach, therapist, parent, teacher or simply someone seeking to improve at something, this episode provides numerous science-supported tools for how to adopt a performance enhancing mindset. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Use Ask Huberman Lab, our new AI-powered platform, for a summary, clips, and insights from this episode. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Growth Mindset (00:03:11) Sponsors: LMNT & Waking Up (00:05:17) Mindset & Narrative (00:12:58) Intelligence Feedback vs. Effort Feedback, Identity Labels (00:20:10) Intelligence vs. Effort Praise: Performance, Persistence & Self-Representation (00:26:45) Fixed Intelligence vs. Growth Mindset (00:28:53) Tool: Intelligence (Performance) vs. Effort Narrative, Labels (00:32:30) Sponsor: AG1 (00:34:36) Tool: Failure & Identity; Effort & Verbs (00:35:41) Tool: Timing, Intelligence vs. Effort Praise & Performance (00:40:080 Fixed Mindset vs. Growth Mindset: Failure & Performance (00:50:28) Tool: Shift from Fixed Mindset (00:54:23) Sponsor: InsideTracker (00:55:30) Stress-is-Enhancing Mindset (01:05:53) How Stress Can Enhance Performance  (01:13:21) Growth Mindset + Stress-is-Enhancing Mindset & Performance (01:20:36) Reframing Stress (01:25:45) Tool 1: Student & Teacher Mindset (01:28:17) Tool 2: Effort Praise/Feedback: Verbs not Labels (01:31:24) Tool 3: Errors & Seeking Help (01:32:58) Tool 4: Self-Teaching & Growth Mindset (01:34:35) Tool 5: Reframe “Mind is Like a Muscle” Analogy (01:39:20) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous, Social Media, Neural Network Newsletter Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices

17 Juli 20231h 39min

How Your Brain’s Reward Circuits Drive Your Choices | Dr. Robert Malenka

How Your Brain’s Reward Circuits Drive Your Choices | Dr. Robert Malenka

In this episode, my guest is Robert Malenka, MD, PhD, a professor of psychiatry and behavioral sciences at Stanford School of Medicine who has made numerous seminal discoveries of how the brain changes (neuroplasticity) in response to learning and in response to rewarding and reinforcing experiences. We discuss the brain’s several reward systems involving dopamine and serotonin and how these motivate us to seek out specific behaviors and substances. We discuss how these reward systems are modified based on context and our memories, and how they can be hijacked toward maladaptive drug seeking in addiction. We also explore how reward systems influence social connections, oxytocin and empathy and how that applies to our understanding of autism spectrum disorders. This episode should be of interest to those interested in neuroplasticity, social bonding, addiction, autism, learning and motivation. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Use Ask Huberman Lab, our new AI-powered platform, for a summary, clips, and insights from this episode. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Dr. Robert Malenka (00:02:53) Sponsors: LMNT & Waking Up (00:05:21) Dopamine & Reward Circuitry (00:11:31) Reward, Arousal, Memory & Dopamine  (00:17:34) Context, Cues & Dopamine Modification (00:25:38) Memory & Reward Scaling (00:30:50) Dopamine, “Addictive Liability” & Route of Administration  (00:39:25) Sponsor: AG1 (Athletic Greens) (00:40:40) Drugs of Abuse & Brain Changes; Addiction & Individual Variability (00:50:51) Reinforcement vs. Reward, Wanting vs. Liking (00:57:500 Opioids, Psychostimulants & Dopamine (01:04:51) Self-Doubt, Confidence & Career (01:12:40) Autism Spectrum Disorder (01:19:29) Pro-Social Interaction & Reward; Oxytocin, Serotonin & Dopamine (01:30:30) Nucleus Accumbens & Behavior Probability (01:38:28) Reward for Pro-Social Behavior (01:43:13) Social Media & “Addictive Liability”; Gambling (01:52:17) Pain, Social Behavior & Empathy (02:02:19) Empathy Circuitry, Dopamine & Serotonin  (02:10:07) Autism Spectrum Disorder & Social Interactions, Empathy (02:17:23) MDMA, Serotonin & Dopamine; Addiction & Pro-Social Effects (02:28:13) Autism Spectrum Disorder, Social Behavior, MDMA & Pharmacology (02:37:18) Serotonin, MDMA & Psychedelics  (02:40:16) Psychedelics: Research & Therapeutic Potential (02:47:57) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous, Social Media, Neural Network Newsletter Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices

10 Juli 20232h 47min

Science-Supported Tools to Accelerate Your Fitness Goals

Science-Supported Tools to Accelerate Your Fitness Goals

In this episode, I explain a set of fitness tools gleaned from the 6-part guest series on fitness, exercise and performance with Dr. Andy Galpin. First, I explain the essential components of a well-rounded fitness program for lifelong health and performance including the minimum requirements for progressive resistance and cardiovascular training. Then, I discuss 12 valuable science-supported fitness tools that take a small amount of time to implement, yet all of which can greatly enhance your level of fitness. These include short endurance-enhancing and strength and hypertrophy-enhancing tools, as well as psychological, respiration (breathing), nutrition and supplementation-based tools — all of which will improve your fitness in meaningful ways and can be easily layered into existing exercise programs to improve your fitness and performance outcomes. For show notes, including referenced articles and additional resources, please visit hubermanlab.com. Use Ask Huberman Lab, our new AI-powered platform, for a summary, clips, and insights from this episode. Thank you to our sponsors AG1: https://athleticgreens.com/huberman LMNT: https://drinklmnt.com/hubermanlab Waking Up: https://wakingup.com/huberman Momentous: https://livemomentous.com/huberman Timestamps (00:00:00) Tools to Improve Fitness (00:02:52) Sponsors: LMNT & Waking Up (00:05:13) Foundational Fitness Program (00:13:33) Tool 1: Zone 2 Cardio & Daily Activities (00:20:33) Tool 2: Low Repetition Strength Training, 3 x 5 Protocol, Warm-Up Sets (00:33:11) Age-Related Strength Decline (00:34:31) Sponsor: AG1 (Athletic Greens) (00:38:08) Tool 3: “Sugarcane” Endurance Protocol (00:43:29) Tool 4: Exercise “Snacks”; Cardiovascular & Muscular Endurance (00:55:31) Tool 5: Rest Period & Physiological Sighs (01:00:20) Tool 6: Down-Regulation Breathing & Recovery (01:05:38) Tool 7: “The Line” (01:09:55) Tool 8: Smartphone Use & Training (01:13:44) Tool 9: Omega-3 Fatty Acids (01:15:37) Tool 10: Creatine (01:20:08) Tool 11: Rhodiola Rosea (01:25:13) Tool 12: Training Fasted or Fed, Caffeine (01:31:09) Training Session Flexibility (01:33:37) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous, Social Media, Neural Network Newsletter Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices

3 Juli 20231h 32min

How to Improve Your Eye Health & Offset Vision Loss | Dr. Jeffrey Goldberg

How to Improve Your Eye Health & Offset Vision Loss | Dr. Jeffrey Goldberg

In this episode, my guest is Jeffrey Goldberg, MD, PhD, professor and chair of the department of ophthalmology at the Byers Eye Institute at Stanford University. His clinical and research efforts focus on retinal and optic nerve diseases such as glaucoma and discovering stem cell and nanotechnology treatments to cure blindness. We discuss how to maintain and improve eye health throughout life, the advantages and disadvantages of corrective lenses, including if you should wear “readers,” the use and risks of contact lenses, considerations for LASIK eye surgery, floaters, dry eye, the importance of sunlight and UV protection and specific exercises to improve eye and vision health. Dr. Goldberg also explains age-related conditions: cataracts, glaucoma, macular degeneration and diabetic retinopathy; and the behavioral and supplementation-based, prescription and surgical tools used to promote eye health. This episode provides essential tools for listeners of any age and background to maintain eye health and offset vision loss. 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) Dr. Jeffrey Goldberg (00:03:25) Sponsors: LMNT & Waking Up (00:06:29) Childhood & Eye Exams (00:11:36) Eye Misalignment & Recovery (00:20:38) Myopia (Near-Sightedness), Children & Sunlight (00:27:03) Sponsor: AG1 (Athletic Greens) (00:31:18) Eye Safety & Protection; Eye Hygiene (00:40:07) Adults & Eye Exams; Optometrist vs Ophthalmologist (00:46:35) Presbyopia (Age-Related Vision Decline), Reading Glasses (00:54:54) Reading Glasses: Use & Recommendations (00:58:34) Night Vision & Glasses (01:03:54) Corrective Eye Glasses, Exercises (01:09:52) Near-Far Exercise & Presbyopia; Smooth Pursuit Exercise & Concussion (01:13:25) Supranormal Vision & Performance Training (01:19:11) 20/20 Vision; Visual Acuity (01:24:51) Contact Lenses: Use, Risks & Aging (01:31:34) UV Protection & Cataracts, “Blue Blockers” (01:38:20) Light Sensitivity & Eye Color (01:40:29) LASIK Eye Surgery (01:46:26) Dry Eye, Tears & Age (01:53:24) Dry Eye, Serum Tears & Preservative-Free Artificial Tears; PRP (02:00:46) Vision Loss: Cataracts, Glaucoma (02:09:23) Age-Related Macular Degeneration, Dry & Wet Forms (02:14:02) Diabetic Retinopathy, Type I vs Type II Diabetes (02:18:54) Diabetic Retinopathy Treatment, Blood Pressure (02:22:17) Glaucoma Screening & Treatment (02:28:07) Smoking, Vaping & Vision Diseases; Cannabis & Eye Pressure (02:35:13) Eye Pressure & Sleep Position (02:37:48) Macular Degeneration, Optic Neuropathies & Red-Light Therapy (02:42:23) “Floaters” (02:45:29) Eye Twitching (02:48:10) AREDS2 Supplementation & Age-Related Macular Degeneration (02:53:39) Glaucoma & Vitamin B3 Supplementation (02:58:42) Retinal Imaging & Neurodegeneration Screening, Multiple Sclerosis (03:06:30) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous, Social Media, Neural Network Newsletter Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices

26 Juni 20232h 42min

AMA #8: Balancing Caffeine, Decision Fatigue & Social Isolation

AMA #8: Balancing Caffeine, Decision Fatigue & Social Isolation

Welcome to a preview of the eighth Ask Me Anything (AMA) episode, part of the Huberman Lab Premium subscription. The Huberman Lab Premium subscription was launched for two main reasons. First, it was launched in order to raise support for the standard Huberman Lab podcast channel — which will continue to come out every Monday at zero-cost. Second, it was launched as a means to raise funds for important scientific research. A significant portion of proceeds from the Huberman Lab Premium subscription will fund human research (not animal models) selected by Dr. Huberman, with a dollar-for-dollar match from the Tiny Foundation. Subscribe to Huberman Lab Premium at https://hubermanlab.com/premium. Timestamps (00:00:00) Introduction 00:01:46 Pros & Cons of Daily Caffeine Consumption 00:23:01 Huberman Lab Premium In the full AMA episode, we discuss: Can Caffeine Have a Detrimental Effect on the Gut Microbiome? What Are Some Ways of Recovering or Resetting From Decision Fatigue? Effects of Social Isolation Title Card Photo Credit: Mike Blabac Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices

23 Juni 202325min

How to Learn Better & Create Your Best Future | Tim Ferriss

How to Learn Better & Create Your Best Future | Tim Ferriss

In this episode, my guest is Tim Ferriss — a five-time #1 New York Times bestselling author, technology investor and host of the iconic podcast, The Tim Ferriss Show. We discuss Tim’s process of exploration, experimentation and mastery — themes that have spanned his career that have placed him on the cutting-edge of many important fields. Tim explains what questions to ask when approaching any new endeavor in order to maximize success. He also explains how to incorporate structure and playfulness into skill and knowledge mastery, how to find and work with mentors, the key importance of location and networks in creating truly impactful things. We also discuss Tim’s philanthropic efforts to support research on psychedelics for the treatment of mental health challenges and we discuss his latest creative endeavors. This episode should be of interest to a wide range of listeners, as Tim’s mastery and wisdom spans athletic and mental pursuits, business, media, technology and the arts. What distinguishes Tim is his ability to thoughtfully deconstruct these processes in order to teach others how to do the same. 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) Tim Ferriss (00:04:24) Sponsors: LMNT & Waking Up (00:07:43) 4-Hour Body & Development Mindset (00:15:22) Origins of Good Ideas (00:20:06) Writing & Structured Thinking (00:27:58) Writing, Night Owls (00:29:50) Sponsor: AG1 (00:34:21) Investigating Outliers; Social Media & Smartphones (00:40:37) Scientific Literacy, Randomized Clinical Trials (00:45:09) Supplement & Experiment Fails; Cold Exposure & Hyperthermia (00:50:46) Slow Carb Diet & Adherence (01:03:35) Morning Protein Intake; Fasting (01:09:53) Power of Place; Building Your Network & Volunteering (01:21:43) Developing Skills; Examining Motivation & Good Questions; Simplicity (01:33:32) Early Psychedelic Exploration, Depression (01:45:38) Psychedelic Research & Mental Health Funding (01:59:00) Saisei Foundation, Journalism Fellowship, Law & Education (02:08:22) Transcranial Magnetic Stimulation (TMS), Psychedelics (02:13:28) Meditation, Transcendental Meditation, Nature (02:18:50) Extended Nature Retreats & Integration Period; “Generative Drive” (02:28:05) Mentors (02:34:53) Mind & Attention Allocation, Social Media, Boredom (02:43:08) Cockpunch (02:59:18) Suicide & Depression, Sexual Abuse, Vulnerability (03:13:18) Making Meaning from Suffering (03:18:28) Role Identity, Future (03:26:21) Parenthood, Animals & Training (03:31:23) Podcasting, Experimentation (03:35:47) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous, Social Media, Neural Network Newsletter Disclaimer Learn more about your ad choices. Visit megaphone.fm/adchoices

19 Juni 20233h 34min

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