Huberman Lab

Essentials: Breathing for Mental & Physical Health & Performance | Dr. Jack Feldman

In this Huberman Lab Essentials [https://www.hubermanlab.com/essentials] episode, my guest is Dr. Jack Feldman, PhD, a Distinguished Professor of Neurobiology at the University of California, Los Angeles, and a leading expert in the science of breathing. We explain the mechanics of breathing and the neural circuits that generate and regulate our breathing rhythm. We also discuss how breathing patterns profoundly influence mental states, including their role in reducing anxiety and enhancing emotional resilience. Dr. Feldman also shares practical tools, such as box breathing for daily performance and magnesium L-threonate supplementation to support cognitive health and longevity. Read the episode show notes at hubermanlab.com [https://www.hubermanlab.com/episode/essentials-breathing-mental-physical-health-performance-jack-feldman]. Thank you to our sponsors AGZ by AG1: https://drinkagz.com/huberman [https://drinkagz.com/huberman] Mateina: https://drinkmateina.com/huberman [https://drinkmateina.com/huberman] Eight Sleep: https://eightsleep.com/huberman [https://eightsleep.com/huberman] Timestamps 00:00:00 Jack Feldman 00:00:23 Breathing Mechanics, Diaphragm; Pre-Bötzinger Complex & Breath Initiation 00:03:25 Nose vs Mouth Breathing 00:04:23 Sponsor: Mateina 00:05:24 Active Expiration & Brain; Retrotrapezoid Nucleus 00:08:32 Diaphragm & Evolution; Lung Surface Area & Alveoli, Oxygen Exchange 00:12:56 Diaphragmatic vs Non-Diaphragmatic Breathing 00:14:23 Physiological Sighs: Frequency & Function; Polio & Ventilators 00:18:21 Sponsor: AGZ by AG1 00:19:52 Drug Overdose, Death & Gasps 00:21:38 Meditation, Slow Breathing & Fear Conditioning Study 00:25:28 Mechanistic Science in Breathwork Validation; Breath Practice & Reduced Fear 00:27:21 Breathing & Emotional/Cognitive State, Olfaction, Vagus Nerve 00:29:44 Carbon Dioxide, Hyperventilation & Anxiety 00:31:21 Sponsor: Eight Sleep 00:32:47 Breathing, Emotion & Autonomic Processes Coordination; Depression & Breath Practices 00:36:43 Tool: Breathwork Practices, Box Breathing, Tummo, Wim Hof 00:38:46 Magnesium L-Threonate & Cognitive Enhancement; Compound Refinement 00:44:28 Clinical Trial, Magnesium L-Threonate & Cognitive Improvements; Dose, Sleep 00:48:28 Acknowledgements Disclaimer & Disclosures [https://www.hubermanlab.com/disclaimer] Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

How Your Thoughts Are Built & How You Can Shape Them | Dr. Jennifer Groh

My guest is Dr. Jennifer Groh, PhD, professor of psychology and neuroscience at Duke University. She explains how our brain encodes sights and sounds and integrates them so we can navigate and understand the world around us. She explains what thoughts really are and how what you focus on determines your thoughts, not just in that moment but your future thoughts too. We discuss this in the context of how to improve your level of focus and happiness and how to complete tasks and task-switch more effectively. We also discuss how you can rewire the neural circuits that underlie your default patterns of thinking and attention. Sponsors AGZ by AG1: https://drinkagz.com/huberman [https://drinkagz.com/huberman] Lingo: https://hellolingo.com/huberman [https://hellolingo.com/huberman] Wealthfront*: https://wealthfront.com/huberman [https://wealthfront.com/huberman] Our Place: https://fromourplace.com/huberman [https://fromourplace.com/huberman] Helix Sleep: https://helixsleep.com/huberman [https://helixsleep.com/huberman] LMNT: https://drinklmnt.com/huberman [https://drinklmnt.com/huberman] Timestamps 0:00 Jennifer Groh 3:41 Sounds & Vision, Sensory Integration; Dynamic Maps 7:42 Context & Mapping; Screens, Projection & Perception, Ventriloquists 13:52 Sound Localization 16:53 Sponsors: Lingo & Wealthfront 19:50 Hearing Loss & Sound Localization, Ear Folds 21:56 Unfamiliarity of Hearing Your Own Voice; Tool: Bone Conduction Headphones 26:16 Tool: Headphone Volume & Protecting Hearing 28:57 3D Sound, Sound Distance, Thunder, Earthquakes 37:24 Sound Integration; Sound Frequency & Distance, Warning Signals 44:36 Sponsors: AGZ by AG1 & Our Place 47:39 Music, Rhythm, Community & Emotion 57:00 Music, Military; Courtship; Evolution of Music & Language 1:02:37 Ears, Visual & Auditory Integration, Sound Localization 1:09:48 Evolution of Visual & Auditory Systems, Music; Brain Controlling Vision 1:15:17 Sponsor: Helix Sleep 1:16:45 Physical Space & Sounds; Cathedrals, Sound Delay 1:22:37 Music, Emotion & Community; Science & Admitting Weakness 1:27:01 Thinking & Sensory Simulations; Forming Thoughts 1:33:18 Attention, Attractor States, Flow States, Tool: Changing Environment 1:37:38 Sounds & Environment for Focus, Attention, Tool: Mental Interval Training 1:44:37 Sponsor: LMNT 1:45:58 Endurance & Interval Mental Work; Mental Rest, Music 1:50:37 Musician, Rehearsal & Performance; Pressure 1:54:16 Chickens; Hypnotizing Chickens, Visual Attention & Focus 2:03:47 Relaxation, Phones & Schools, Boredom, Social Media 2:12:48 Acknowledgements 2:13:58 Zero-Cost Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Protocols Book, Social Media, Neural Network Newsletter *This experience may not be representative of other Wealthfront clients, and there is no guarantee of future performance or success. Experiences will vary. The Cash Account, which is not a deposit account, is offered by Wealthfront Brokerage LLC, member FINRA/SIPC.  Wealthfront Brokerage is not a bank. The base APY is 3.50% on cash deposits as of November 07, 2025, is representative, subject to change, and requires no minimum. If eligible for the overall boosted rate of 4.15% offered in connection with this promo, your boosted rate is also subject to change if the base rate decreases during the 3 month promo period. Funds in the Cash Account are swept to program banks, where it earns the variable APY. New Cash Account deposits are subject to a 2-4 day holding period before becoming available for transfer. Investment advisory services are provided by Wealthfront Advisers LLC, an SEC-registered investment adviser. Securities investments: not bank deposits, bank-guaranteed or FDIC-insured, and may lose value. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Essentials: Erasing Fears & Traumas Using Modern Neuroscience

In this Huberman Lab Essentials [https://www.hubermanlab.com/essentials] episode, I explore the neuroscience of fear and trauma and how to effectively process and eliminate traumatic responses. I explain why successful fear treatment requires both extinction of the old fearful response and replacement with a new positive association—not just cognitive reframing. I also explain how the threat reflex activates specific circuits connecting the amygdala, prefrontal cortex, and dopamine systems, and why detailed recounting of traumatic events progressively reduces their physiological impact. Finally, I review evidence-based approaches, including prolonged exposure therapy and cognitive behavioral therapy, discuss how five minutes per day of deliberate stress through cyclic hyperventilation can rewire fear responses, explain the critical role of social connection in activating neural pathways that reduce trauma, and share supplementation options for managing anxiety. Read the episode show notes at hubermanlab.com [https://www.hubermanlab.com/episode/essentials-erasing-fears-traumas-using-modern-neuroscience]. Thank you to our sponsors AGZ by AG1: https://drinkagz.com/huberman [https://drinkagz.com/huberman] LMNT: https://drinklmnt.com/huberman [https://drinklmnt.com/huberman] Function: https://functionhealth.com/huberman [https://functionhealth.com/huberman] Timestamps (0:00) Introducing Fear & Trauma (0:17) What is Fear? (1:03) Autonomic Arousal: "Alertness" vs. "Calmness" (2:05) Fear vs. Stress & Anxiety (9:20) "The Threat Reflex": Neural Circuits for Fear (20:50) Cognitive (Narrative) Therapies for Fear (26:35) PTSD Treatments: Ketamine, MDMA, Oxytocin (33:11) Deliberate Brief Stress Can Erase Fears & Trauma (35:51) Nutrition, Sleep, & Other General Support Erasing Fear & Trauma (38:18) Recap Disclaimer & Disclosures [https://www.hubermanlab.com/disclaimer] Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Using Existing Drugs in New Ways to Treat & Cure Diseases of Brain & Body | Dr. David Fajgenbaum

My guest is Dr. David Fajgenbaum, MD, professor of translational medicine and human genetics at the University of Pennsylvania. He explains how, unbeknownst to most doctors, many approved medications can successfully treat or even cure diseases other than the ones they are typically used to treat. He shares his story of escaping death from Castleman's disease by discovering a life-saving treatment using repurposed drugs that were approved for other purposes. Our conversation explores how researchers, physicians, and you—the general public—can explore novel treatments and cures to conditions the medical profession has deemed untreatable, including cancers. We also discuss the crucial role of mindset in battling diseases and the lesser-known use of compounds to promote health and longevity. Read the episode show notes at hubermanlab.com [https://www.hubermanlab.com/episode/david-fajgenbaum-using-drugs-treat-diseases-brain-body]. Thank you to our sponsors AGZ by AG1: https://drinkagz.com/huberman [https://drinkagz.com/huberman] Eight Sleep: https://eightsleep.com/huberman [https://eightsleep.com/huberman] Rorra: https://rorra.com/huberman [https://rorra.com/huberman] David: https://davidprotein.com/huberman [https://davidprotein.com/huberman] Function: https://functionhealth.com/huberman [https://functionhealth.com/huberman] Timestamps (0:00) David Fajgenbaum (4:06) Self-Agency in Healthcare; New Uses for Old Medicines (6:44) Other Uses of Aspirin & Viagra; Drug Development & Approved Use (8:53) Lidocaine & Breast Cancer; Pharmaceutical Companies & Incentives (11:36) Sponsors: Eight Sleep & Rorra (14:16) Pharmaceutical Companies, Patents & New Uses; Lithium (18:40) Tools: Finding Reliable Health Sources, Asking Questions & Disease Organizations; DADA2 Treatment (21:53) Medical Community & Connections; Integrated Medical Databases (24:36) Drug Repurposing, Thalidomide, Pembrolizumab (28:45) Medical Research Databases, Mapping Disease Connections (33:51) Every Cure Database & Programs, Bachmann-Bupp Syndrome; Colchicine & Heart Disease (37:57) Sponsors: AGZ by AG1 & David (40:41) David’s Medical & Career Journey, Glioblastoma, Castleman Disease (49:10) Autoimmune Disease, Driven Personality, Stress & Immune System (52:52) Castleman Disease, Treatment, Chemotherapy (55:54) Physician Continuing Education, Santa Claus Theory of Civilization; Science Collaboration (1:03:32) Medical School, Relapse & “Overtime”, Finding a New Treatment, Rapamycin (1:12:46) Sport, Football & Resilience; Challenge & Personal Growth, Family (1:18:41) Sponsor: Function (1:20:29) Social Support; “Overtime”, Gratitude (1:23:19) Business School, Castleman Disease Treatment; Repurposing Drugs & AI (1:28:29) Drug Repurposing, POEMS Syndrome; Mitigating Risk (1:35:32) Nicotine, Compounds for Preventive Health; GLP-1 Agonists (1:40:51) Bioprospecting, Drug Development; AI, Prioritization & Novel Connections (1:46:18) Healthcare & Children; Hope, Action & Impact Circuit; Challenge & Super-Agers (1:52:50) Get Involved with Every Cure (1:56:20) Zero-Cost Support, YouTube, Spotify & Apple Follow, Reviews & Feedback, Sponsors, Protocols Book, Social Media, Neural Network Newsletter Disclaimer & Disclosures [https://www.hubermanlab.com/disclaimer] Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Essentials: The Biology of Slowing & Reversing Aging | Dr. David Sinclair

In this Huberman Lab Essentials [https://www.hubermanlab.com/essentials] episode, my guest is Dr. David Sinclair, PhD, a professor of genetics at Harvard Medical School and a leading expert on the biology of aging. We discuss the cellular and molecular mechanisms of aging—and how specific behaviors, such as fasting, regular exercise and NAD⁺-boosting compounds like NMN, can activate the body's natural longevity pathways. This discussion highlights how lifestyle choices profoundly influence the aging process and may even slow or reverse key aspects of biological aging. Read the episode show notes at hubermanlab.com [https://www.hubermanlab.com/episode/essentials-biology-slowing-reversing-aging-dr-david-sinclair]. Thank you to our sponsors AGZ by AG1: https://drinkagz.com/huberman [https://drinkagz.com/huberman] David: https://davidprotein.com/huberman [https://davidprotein.com/huberman] Eight Sleep: https://eightsleep.com/huberman [https://eightsleep.com/huberman] Timestamps (0:00) David Sinclair (0:20) Longevity, Anti-Aging, Aging as a Disease (2:27) Causes of Aging; Epigenome & Genes (4:53) CD & Scratches Analogy, DNA, Silencing & Expressing Genes (6:44) Physical Appearance & Aging (7:36) Sponsor: David (8:54) Childhood Development & Aging, Horvath Clock, Accelerate Aging (11:30) Rates of Puberty & Aging, Growth Hormone (12:37) Body Size & Longevity; Epigenetics (13:07) Fasting, Calorie Restriction & Longevity, Sirtuins, Insulin & Glucose (16:31) Tool: Skip a Meal (17:07) Longer Fasts & Autophagy, “Deep Cleanse” (18:07) Sponsor: AGZ by AG1 (19:36) Fasting, Fluids, Electrolytes (20:16) Sirtuins, Glucose, mTOR & Fasting; Leucine, Tool: Pulsing Behaviors (24:24) Breaking a Fast, Tools: Do Your Best; Transitions (27:00) Sirtuins, NAD, NMN Supplementation (29:04) Sponsor: Eight Sleep (31:10) Iron & Senescent Cells; Personalize Medicine (32:40) Tool: Blood Markers, CRP (34:50) Tool: Aerobic & Resistance Exercise (35:55) Estrogen, Fasting & Fertility; Aging & Rejuvenation (38:20) Acknowledgements Disclaimer & Disclosures [https://www.hubermanlab.com/disclaimer] Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]