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.
we're getting a cortisol response cortisol is a glucocorticoid stress hormone as it's sometimes called which can be a good thing if it sets in motion a number of other things such as the increase in the activity of the anate immune system
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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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sauna session okay so every time you go into the sauna you're getting an increase in cortisol we know that because the heat is a stressor again don't think about heat as oh you're just kind of relaxing in the onet so nice you're getting a cortisol response cortisol is a glucocorticoid stress hormone as it's sometimes called which can be a good thing if it sets in motion a number of other things such as the increase in the activity of the anate immune system
when you get into a hot sauna heart rate increases there's vasod dilation there's the increase in the release of heat shock proteins there's the increase in things like dorphin
There's also some um hormone effects too. So you see growth hormone increase with sauna use. You see cortisol reduction um and you can see reduction inflammation. So CRP has been shown to go down with with sauna as well. So probably not as strong as Hbot, but still a a market like 30% reduction in CRP from sauna use, which is pretty cool.
yeah i think there's overlap pretty much with everything with exercise including there's increased growth hormone levels like we saw increased prolactin cortisol and then there are other hormones likely increase norepinephrine renin activity white blood cell count heat shock proteins so there might be some type of immune function improvement to there as well
individuals that stayed in the sauna until exhaustion had a 310% increase in norepinephrine and a 10-fold increase in prolactin levels
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.