Rhonda Patrick· PhD
The average core body temperature reached during sessions was approximately 101.53°F (38.63°C), with the infrared sauna set to an average temperature of 135.0°F (57.2°C) and sessions lasting around 123 minutes.
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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.
The average core body temperature reached during sessions was approximately 101.53°F (38.63°C), with the infrared sauna set to an average temperature of 135.0°F (57.2°C) and sessions lasting around 123 minutes.
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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.