Bryan Johnson· Author
But you may be different. Try it and see if it helps or hurts.
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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.
But you may be different. Try it and see if it helps or hurts.
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.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
And I I think if people don't want that type of adapt adaptation period, they can just slow it and delay it by easing themselves into sauna because really if you do it if you do it slowly like sauna is is very forgiving.
I think there are probably some people who if they do sauna before bed it would probably have a negative impact on their sleep um whereas if they did it earlier in the day it might produce a better outcome so I think you just have to again it comes back to flexibility and um and and and you know being being kind of um experimental in how you think about stuff
but but empirically the the impact this has had on my sleep is insane it's so much so that I I've often wondered is the mortality benefit of sauna largely attributed to the Sleep benefits that come uh from its use
a a sauna before bed really seems to help um maybe it creates a great a bigger gradient in temperature drop as I go from high body temp to low when I get into that super cold bed
increasing your heart it might be the same problem as the exercise the exercise if they don't have the rapid recovery they don't have the rapid recovery
This whole idea of I'll sleep when I'm dead, which used to be my mantra, uh, is like, yeah, you're going to be dead quicker if you adopt that mantra.
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.