David Sinclair· PhD
It’s likely the power of hormesis - what doesn’t kill you makes you live longer.
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The evidence is convergent. Multiple independent sources reach the same conclusion, the underlying mechanism is well-characterized, and even the field's most cautious voices treat it as worth doing.
It’s likely the power of hormesis - what doesn’t kill you makes you live longer.
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So, there's...this process I'm talking about is often referred to as hormesis, right? ... Like, the hormetic effect where you're putting a little bit of stress on the body and the same goes for exercise, the sauna, cold shocking.
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.