Peter Attia· MD
If you're just doing like 20 or 30 minutes, it's not going to be the same. Like your heart rate doesn't go up as much. You don't feel as hot because the temperature is not as hot.
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We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
If you're just doing like 20 or 30 minutes, it's not going to be the same. Like your heart rate doesn't go up as much. You don't feel as hot because the temperature is not as hot.
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.
IR saunas do make you sweat but other cardiovascular benefits are not as robust.
If you stay in an infrared sauna for 20 minutes, it's not going to be much of anything. uh with respect to increasing cardiac output and all these things I talked about.
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.