Where this was said
Hyperbaric Chambers, Wearables, Sleep, and Blood Flow
At 2:18:10 · chapter starts 2:05:50
The final technical stretch covers a range of biohacking modalities. Rogan's new hypoxia training machine — simulating 14,000 feet altitude at 115°F — is framed as a hormetic stressor for cardiovascular adaptation. Sinclair describes his own hyperbaric chamber and references the Israeli study showing 60 sessions over 90 days improved memory, wound healing, and telomere length. Both men compare notes on their dual-ring wearable setups (Oura for sleep, UltraHuman for cardiac), with Sinclair noting AI is now providing personalized contextual insights from these devices. The segment culminates in Sinclair's core thesis for older listeners: vascular dementia, the second-largest cause of dementia in the world, is caused by poor blood flow and is the most actionable target. Viagra, NMN, and exercise all restore blood flow, and Sinclair argues this is the most neglected anti-aging intervention in mainstream medicine.
Sinclair's Harvard lab operates on approximately $3 million per year — a tiny fraction of what competitors like Jeff Bezos's Altos Pharma, which has billions, are spending on the same challenge.
Vascular dementia is the second-largest cause of dementia worldwide and is caused by poor blood flow — the most underappreciated driver of aging. Exercise, NMN, and PDE5 inhibitors like Viagra all restore blood flow, and Sinclair argues this is the most actionable intervention for brain health.
