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.
There are new ones such as infrared saunas, and the infrared light actually penetrate the skin and is thought, and there's some evidence; real, believable evidence; that they also, in the skin layer, can reverse aspects of aging as well, and including improve hair growth.
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.
But it's beyond hair now that it looks like shining red laser light, which can penetrate deeply into the skin, even into the sub layers can be beneficial on the entire body.
There are new ones such as infrared sauners and the infrared light actually penetrates the skin and is thought and there's some evidence real believable evidence that also in the skin layer uh can reverse aspects of aging as well and including improve hair growth.
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.