Sauna and Heat Adaptation

Regular sauna use is associated with lower cardiovascular mortality in long-running observational research, and progressive heat exposure produces reliable acclimation effects — the body adapts to heat the way it adapts to training load. This entry merges two protocols Compound previously listed separately: a weekly session structure, and a progressive build in duration and temperature for people who want to develop heat tolerance deliberately. Start conservative. The adaptation comes from consistency across weeks, not from any single long session.

Supported. Useful evidence exists, but outcomes or dosing vary. How Compound evaluates evidence

• Laukkanen et al., Association between sauna bathing and fatal cardiovascular and all-cause mortality events (JAMA Intern Med, 2015)