AMA #16: Sleep, Vertigo, TBI, OCD, Travel Tips, Gut-Brain Axis & More
Summary
Recorded live from Sydney, Australia, this AMA episode covers a wide range of practical health topics including sleep optimization, vertigo management, recovery from traumatic brain injury, OCD neuroscience, circadian rhythm adjustment for travel, fish oil dosing, hormone monitoring, exercise recovery, and gut health. Andrew Huberman emphasizes low-cost, science-based tools that integrate naturally into everyday life rather than rigid protocols.
Key Takeaways
- QQRT (Quality, Quantity, Regularity, Timing) is the most important framework for evaluating sleep — not just total hours.
- NSDR (Non-Sleep Deep Rest) is a zero-cost tool for recovering lost sleep, reducing stress, and replenishing mental and physical vigor.
- Vertigo can often be relieved by fixating on a point several feet away and slowly moving toward it, overriding incorrect vestibular error signals.
- Creatine monohydrate (5–10g/day) may support brain function under conditions of TBI or high altitude.
- EPA omega-3s at 1–3g/day show mild to moderate antidepressant effects in clinical trials.
- For circadian rhythm adjustment, knowing your temperature minimum (approximately 2 hours before your normal wake time) allows precise light exposure timing to shift your clock.
- OCD involves a neurological malwiring where compulsions worsen obsessions; effective treatment combines pharmacology (often SSRIs) with behavioral therapy to open a window for neuroplasticity.
- Hormone panels should be taken starting in your late teens and annually after age 40.
- 1–4 servings of low-sugar fermented foods per day is a key dietary strategy for gut-brain axis optimization.
- Leave 10–20% of capacity in reserve during workouts to prevent overtraining and sustain long-term consistency.
Detailed Notes
Maintaining Health Pillars While Traveling
- Prioritize morning sunlight exposure even on overcast days
- Travel with a red light bulb (any red bulb works, including party lights) — switch off overhead lights in the evening to lower cortisol and ease sleep onset
- The “quadfecta” for shifting circadian rhythm in a new location: morning sunlight + movement + social engagement + caffeine (or food if preferred)
- Hop on the local meal schedule to accelerate circadian adaptation
- Daily NSDR/yoga nidra to manage stress and restore dopamine and vigor
Sleep Optimization: The QQRT Framework
QQRT (coined by Matt Walker) stands for:
- Quality — Are you sleeping through the night? One restroom trip is normal; multiple wake-ups are not.
- Quantity — 5–6 hours may be sufficient for some people; the absence of daytime sleepiness is the key indicator of adequacy.
- Regularity — Consistent sleep/wake times within ~1 hour, 5–6 days per week.
- Timing — Where sleep falls in the 24-hour cycle matters. Early risers feel best sleeping ~9–9:30 PM; night owls fare better sleeping ~1–2 AM.
Practical tip: Check your sleep tracker score halfway through your day rather than immediately upon waking, to avoid the “belief effect” where a poor score degrades performance regardless of actual sleep quality.
For those sleeping only 5–6 hours:
- Do a 10–30 minute NSDR protocol before getting out of bed, or at some point during the day
- NSDR can help recover missed sleep and improve future sleep depth
Vertigo: Causes and Relief
- Vertigo (spinning dizziness) must be distinguished from lightheadedness (straight-down falling sensation)
- True vertigo involves disruption of the vestibulo-ocular reflex — the system linking inner ear signals (via semicircular canals and otoliths) with visual stabilization
- Can be caused by viruses, hormonal changes, or displacement of otoliths in the semicircular canals
Practical relief protocol:
- Find a fixation point 3–4 feet away
- Slowly move toward it, or alternatively, extend a finger and slowly bring it toward your nose until nearly cross-eyed
- Move the finger back out, then in again — repeat several times
- This forces the visual component to dominate and recalibrates the vestibular system
- Also effective for motion sickness and post-transit nausea: go outside and fixate on the most distant point visible
TBI and Brain Recovery
- The brain is highly resilient due to neuroplasticity — years of poor sleep or diet can be significantly offset by correcting habits now
- Glymphatic flow (brain waste clearance during sleep) is especially critical after TBI
Key interventions:
- Sleep optimization — critical for glymphatic clearance of reactive oxygen species and extracellular debris
- Elevate feet 5–15 degrees during sleep to increase glymphatic flow
- Hyperbaric oxygen therapy — may improve TBI outcomes
- Creatine monohydrate — 5–10g/day supports creatine phosphate metabolism in the forebrain; may enhance brain function post-TBI
- Avoid excessive anti-inflammatory supplementation — high-dose curcumin/turmeric can reduce dihydrotestosterone (DHT) production and may contain lead contaminants; cooking with small amounts is fine
- Transcranial magnetic stimulation (TMS) as an adjunct therapy
OCD: Neuroscience and Treatment
- OCD involves malwiring in the basal ganglia (go/no-go circuits) connected to the dopamine reward system
- Key distinction: in OCD, compulsions worsen obsessions rather than relieving them — unlike a normal itch-scratch cycle
- Severe OCD requires neurological intervention; behavioral approaches alone are often insufficient
Effective treatment approach:
- SSRIs or other neuromodulators (prescribed by psychiatrist) open a window for neuroplasticity by elevating serotonin
- Behavioral therapy — exposure to the obsession trigger, then resisting the compulsion with therapist support
- Fewer resistance trials are needed when neurochemical milieu is optimized, accelerating plasticity
- TMS may also be used as an adjunct
Circadian Rhythm Adjustment for Travel (e.g., SF → NYC, 3-hour shift)
Temperature minimum method:
- Your temperature minimum occurs approximately 2 hours before your habitual wake time
- Example: Wake at 8 AM → temperature minimum at 6 AM
Pre-travel protocol (2 days before departure):
- Set an alarm 2 hours earlier than normal (e.g., 6 AM)
- Get 5–10 minutes of bright light exposure (artificial or natural)
- Go back to sleep until normal wake time
- Repeat the next day
- On arrival, the final shift to local time is much easier
- Avoid bright light before your temperature minimum — it will delay your clock rather than advance it
- If no pre-travel prep is done: use caffeine, morning exercise, and social engagement to push through; take a 30–90 minute nap late morning if needed
Fish Oil and Omega-3s
- Target: 1–2g of EPA per day (not total fish oil — check the label)
- Benefits: reduced inflammation, brain and cardiovascular health, and notably a mild to moderate antidepressant effect at 1–3g EPA/day (supported by clinical trials)
- EPA at prescription doses is an FDA-approved drug for cardiovascular and mental health
- Most people get too much omega-6 and insufficient omega-3
- Choose high-quality sources tested for mercury and contaminants (see Dr. Rhonda Patrick’s contaminant chart)
- Taking 2 servings per day is reasonable if needed to reach 1–2g EPA
- Liquid form (lemon-flavored) is preferable to capsules when not traveling
Hormone Monitoring: Recommended Schedule
| Life Stage | Frequency |
|---|---|
| Late teens (post-puberty) |