Bryan Johnson· Author
HBOT and dry sauna are two of the most efficacious therapies I've done.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
HBOT and dry sauna are two of the most efficacious therapies I've done.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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I reduced a cognitive decline marker by 36% using HBOT and sauna. Serum pTAU217 is a marker for Alzheimer's disease. A year ago, my pTAU217 level was in the upper normal range at 0.14 pg/mL (with 0.18 pg/mL being a commonly used cut-off value).
So I've done recent therapies like hyperbaric oxygen therapy. I'm now doing sauna. I've done things such as meenyal stem cells in my joints and a host of other therapies all based upon scientific evidence.
4–7 sauna sessions per week, 20 minutes at 80°C+, reduce cardiovascular mortality risk by 40% over a decade.
Regular sauna use raises BDNF and improves verbal memory in older adults.
Sauna protocols only generate the longevity effect when sessions exceed 30 minutes.
Hot-tub bathing yields cardiovascular benefits comparable to traditional Finnish sauna at matched core-temp dose.