Andrew Huberman· PhD
And in fact, for all intents and purposes, it really is cardiovascular exercise, except that there isn't the mobilization and the loading of joints and limbs and things of that sort.
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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.
And in fact, for all intents and purposes, it really is cardiovascular exercise, except that there isn't the mobilization and the loading of joints and limbs and things of that sort.
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 basically your heart starts beating, more blood starts circulating, your vasculature changes shape, literally, to accommodate those increases in heart rate and blood volume. And you're basically getting a cardiovascular workout in that hot environment, even if you're just sitting down.
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.