Dry sauna is likely superior to wet sauna Dry (Finnish) sauna delivers low-humidity heat,

Well SupportedDry sauna activates heat-shock proteins in the skin, and a modest 1°C increase in core temperature is sufficient for this activation without risking hyperthermia.

Well SupportedUp to 70% of cardiac output is directed to the skin in a hot, dry sauna, causing central and peripheral arteries to relax and allow maximal blood flow.

Well SupportedRegular dry sauna use improves heat tolerance, leading to a lower core body temperature with metabolic advantages and increased capacity for efficient sweating.

Well SupportedAchieving subjective heat in an infrared sauna or steam room comparable to 20 minutes in a Finnish sauna is likely sufficient.

Partially Supported