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AMA #16: Sleep, Vertigo, TBI, OCD, Tips for Travelers, Gut-Brain Axis & More

Welcome to a special edition of the 16th Ask Me Anything (AMA) episode, part of Huberman Lab Premium, recorded in Sydney, Australia. This episode is a recording of a live stream AMA, originally exclusive to our Premium members. We've decided to make the full-length version available to everyone, including non-members of Huberman Lab Premium. Huberman Lab Premium was launched for two main reasons. First, it was launched in order to raise support for the main Huberman Lab podcast — 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. If you're not yet a member but enjoyed this full-length livestream AMA, we invite you to join Huberman Lab Premium at https://www.hubermanlab.com/premium. By subscribing, you'll gain access to exclusive benefits including our regular monthly full-length AMA episodes, AMA transcripts, podcast episode transcripts, early access to live events and more. Additionally, a significant portion of your membership proceeds contributes to advancing human scientific research. You can learn more about the research we were able to support in our Annual Letter 2023: https://www.hubermanlab.com/annual-letter/2023. If you're a Huberman Lab Premium member, you can access the transcript for this AMA episode here: https://www.hubermanlab.com/episode/ama-16-sleep-vertigo-tbi-ocd-tips-for-travelers-gut-brain-axis-more Timestamps 00:00:00 Introduction 00:02:34 Achieving Key Health Pillars While Traveling 00:07:11 Improving Sleep Quality 00:13:11 Understanding and Managing Vertigo 00:20:44 Enhancing Brain Function Post-TBI 00:26:58 Getting Closer to Unraveling OCD 00:30:44 Adjusting Circadian Rhythms for Travel 00:34:58 Optimal Dosage for Fish Oil Supplements 00:40:17 Monitoring Hormone Levels 00:46:09 Optimizing the Gut-Brain Axis 00:52:04 Best Practices for Tongue Cleaning 00:56:36 Conclusion & Thank You Social & Website Instagram: https://www.instagram.com/hubermanlab Threads: https://www.threads.net/@hubermanlab Twitter: https://twitter.com/hubermanlab Facebook: https://www.facebook.com/hubermanlab TikTok: https://www.tiktok.com/@hubermanlab LinkedIn: https://www.linkedin.com/in/andrew-huberman Website: https://www.hubermanlab.com Newsletter: https://www.hubermanlab.com/newsletter #HubermanLab #Science #AMA Title Card Photo Credit: Mike Blabac - https://www.blabacphoto.com The Huberman Lab podcast is for general informational purposes only and does not constitute the practice of medicine, nursing or other professional health care services, including the giving of medical advice, and no doctor/patient relationship is formed. The use of information on this podcast or materials linked from this podcast is at the user’s own risk. The content of this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they may have and should seek the assistance of their health care professionals for any such conditions.

Andrew Hubermanhost
Feb 29, 202456mWatch on YouTube ↗

CHAPTERS

  1. 0:00 – 3:30

    Intro, Australia Tour, and Premium Support for Human Research

    Huberman opens from Sydney, thanks premium subscribers, and explains how premium revenue—now with 3:1 matching donors in 2024—is funding human-based research in areas like mental health, migraine, immunology, cancer, mindset, nutrition, and exercise physiology.

  2. 3:30 – 13:00

    Staying On Pillars While Traveling: Light, Red Light, Movement, NSDR

    He addresses how he maintains core health behaviors while on tour, emphasizing protocols that integrate with real life rather than rigid routines. He details using sunlight, red light at night, morning movement, social engagement, caffeine, and NSDR/Yoga Nidra to keep circadian rhythms and stress in check.

  3. 13:00 – 26:10

    Is 5–6 Hours of Sleep Enough? QQRT, Trackers, and NSDR Backfill

    Huberman unpacks how to evaluate whether shorter sleep is sufficient, introducing Matt Walker’s QQRT framework: quality, quantity, regularity, and timing. He cautions against over-reliance on sleep trackers and recommends NSDR as a way to compensate for modest sleep duration and improve sleep depth.

  4. 26:10 – 38:30

    Understanding and Fixing Vertigo: Inner Ear, VOR, and Visual Anchoring

    He distinguishes vertigo from lightheadedness and explains the vestibulo-ocular reflex using the inner ear’s semicircular canals and otoliths. He then provides a practical drill that uses visual fixation to recalibrate the system, useful for vertigo and motion sickness.

  5. 38:30 – 52:10

    Repairing Brain Function After Poor Habits and TBI

    Responding to concerns about damage from poor sleep, diet, and early-life TBI, Huberman emphasizes the brain’s robustness and capacity for recovery. He outlines sleep-based glymphatic clearance, feet-elevated sleep, hyperbaric oxygen, and creatine as promising tools, while warning against overzealous anti-inflammatory supplement use.

  6. 52:10 – 59:30

    OCD as a Circuit Disorder: Drugs Plus Targeted Behavior

    He explains OCD as a miswiring in basal ganglia go/no-go circuits and their dopamine-driven reward connections. Huberman reframes SSRIs not as simple ‘serotonin boosters’ but as neuromodulatory wedges for plasticity, emphasizing that behavioral protocols must exploit that window to rewire obsessive-compulsive loops.

  7. 59:30 – 1:06:30

    Mini Jet-Lag Toolkit: Shifting SF to NYC by Three Hours

    Using a SF→NYC example, Huberman describes how to pre-shift circadian rhythms based on body temperature minimum and timed light exposure. He also offers a ‘brute-force’ option using local behavior and strategic napping when pre-shifting isn’t feasible.

  8. 1:06:30 – 1:15:30

    Omega-3 Fish Oil: Dosing, Contaminants, and Mood Effects

    Huberman defends fish oil’s value despite skeptical headlines, focusing on omega-3s as building blocks for brain membranes and their antidepressant effects at sufficient EPA doses. He discusses sourcing, forms, and how to interpret labels so dosing reaches therapeutic EPA levels.

  9. 1:15:30 – 1:26:00

    Hormone Testing: What, When, and How Often

    He outlines a pragmatic schedule for hormone labs in otherwise healthy people and highlights which markers matter. Huberman emphasizes pattern and ratios (e.g., free vs total testosterone) over single numbers, and notes the importance of timing and menstrual phase in women.

  10. 1:26:00 – 1:33:00

    Post-Workout NSDR and Avoiding Overtraining

    Huberman responds to a listener who needs NSDR after workouts, framing it both as a powerful recovery tool and a possible signal of overtraining. He uses this to generalize about leaving ‘gas in the tank’ for both exercise and work, prioritizing consistency and injury prevention.

  11. 1:33:00 – 1:40:30

    Gut–Brain Axis Basics: Sleep, Fermented Foods, Fiber, and Microbial Diversity

    He offers a concise protocol to support the gut–brain axis, focusing on sleep, prudent antibiotic use, fermented foods, fiber, and reasonable exposure to environmental microbes. Huberman also briefly touches on microbiome benefits of pets and criticizes fiber-free diets.

  12. 1:40:30 – 1:51:30

    Tongue Cleaning, Oral Microbiome, and Systemic Health

    Closing with oral health, Huberman shares consensus advice from multiple dentists on brushing, flossing, mouthwashes, and tongue cleaning. He underscores oral health as a major pillar of brain and cardiovascular health, recommending gentle tongue brushing with a dedicated soft brush over aggressive scraping.

  13. 1:51:30

    Wrap-Up and Lighthearted ‘Upside-Down’ Australia Sign-Off

    Huberman ends with a playful remark about being ‘upside down’ in Australia and jokes about swirling his AG1 in the opposite direction below the equator. He thanks listeners again and reiterates his appreciation for their interest in science.

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