Bryan Johnson· Author
My sauna protocol is 20 min daily at 200°F.
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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.
My sauna protocol is 20 min daily at 200°F.
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My sauna protocol is 20 min daily at 200°F.
My sauna protocol is 20 min daily at 200°F.
Before this experiment, I did over 200 sauna sessions at 200°F for 20 min. This means I likely never achieved the heat shock protein (HSP) threshold at 102.4°F (39°C), which deprived me of so much sauna-health goodness.
For me, that takes 33 min at 195°F. With ice on face and neck, 38min.
This means I likely never achieved the heat shock protein (HSP) threshold at 102.4°F (39°C), which deprived me of so much sauna-health goodness.
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.