Dr. Andrew Huberman, professor of neurobiology and ophthalmology at Stanford University, joins A16Z partner Daisy Wolf to discuss the dramatic shift in consumer health behavior over the past five years.

The conversation explores how COVID-19 catalyzed a health awakening, moving from basic supplements like vitamin D to advanced peptides, GLP-1 drugs, and the emerging gray market for compounds like retatrutide and BPC-157.

Huberman discusses the evolution from 'reading' biology through wearables to 'writing' to it using neurotechnologies, peptide cocktails, and direct physiological interventions that could reshape how we control sleep, focus, and cortisol.

The COVID Health Awakening and Supplement Evolution

COVID created a health awakening where 'everyone realized some bell went off - we are all responsible for our own health' regardless of vaccine stance

Vitamin D broke through first because 'doctors weren't saying don't take it' and it could be increased by sunlight exposure

Resistance training went mainstream, bringing protein, creatine, and caffeine interest - 'creatine was popular when I was 16, then cognitive benefits emerged'

Circadian disruption during lockdowns created mental health issues: 'brighter days and darker nights' correlate with better mental health in 80,000+ subject UK study

GLP-1 Revolution and Obesity Eradication Potential

Nearly one in seven Americans takes GLP-1 drugs, with 20% having tried them - numbers continue rising

Retatrutide (GLP-3) allows people to lose 'up to a third of their body weight' with muscle sparing, bypassing previous GLP side effects

Compounding pharmacies and gray markets already sell retatrutide despite Lilly's efforts to prevent it - 'it's not legal, but not necessarily enforced'

Huberman predicts 'more than half' of Americans will be taking GLPs in five years, especially those from families with obesity history

GLPs enable healthy weight without exercise, like how 'credit came along where everyone could have a nice car' versus previous fitness requirements

Peptide Gray Markets and Risk Assessment

Gray market sources sell peptides 'for research purposes only, not for human use' - 'who's doing research on these peptides at home?'

BPC-157 has 'very, very high LD50' with no reported adverse events despite people 'injecting enormously high amounts'

Growth hormone secretagogues like tessomorelin and ipamorelin increase deep sleep and are FDA approved for specific indications

Melanotan creates permanent skin color changes and priapism risk - 'this isn't the kind of thing you do to go on vacation'

Gray market sources provide 99% purity with data sheets, but repeated injection of 1% contaminants like lipopolysaccharide could cause inflammation

Reading vs Writing to Biology: The Next Frontier

Current health tech only 'reads' biology through wearables - 'you can't write to the sleep system yet'

Future sleep tech will cool core body temperature through palms/feet and use eye masks that move eyes back and forth for 6-minute sleep induction

Real-time cortisol monitoring is the holy grail - 'you want a big morning cortisol pulse and then you want that to trough in the late afternoon'

Starchy carbohydrates are 'comfort foods' because they provide energy that allows cortisol to come down - essential for sleep on ketogenic diets

Future peptide cocktails will combine pinealin for sleep with dopaminergic compounds and neuroprotectants like 'a little Clawfo to protect against Alzheimer's'

Focus Drugs and Cognitive Enhancement Limits

Sunosi (S-U-N-O-S-I) is 'a very interesting drug' approved for excessive daytime sleepiness that performed well in ADHD trials

Adderall and Ritalin 'focus about as well as a good night's sleep' according to recent WashU research - they increase alertness, not focus per se

Excessive stimulant use concerns Huberman: 'you don't want to stimulate the sympathetic nervous system so much for so often - it can probably shorten your life'

Future focus enhancement will likely come through external devices like glasses that 'ramp up your level of focus' for 40-minute sessions

Longevity Limits and Blood Banking Innovation

Genetic upper limit for human lifespan is 'about 120' with most people reaching closer to 105 - 'aim for 100 healthy' is the realistic goal

Tony Weiss Corey's work shows 'factors in young blood and exercised blood that can rejuvenate the brain and body'

Huberman would bank his own exercise blood: 'I'm healthier now at 50 than I'm likely to be at 70 - I would love my own blood at 70'

Weekly infusions of banked exercise blood could be more beneficial than 'glutathione NAD infusion, which is probably fine, but I don't know that it provides that much'