Sauna

Heat exposure and sauna protocols — frequency, duration, and temperature — for HRV, sleep, recovery, and cardiovascular health.

Evidence is mixed

Cardiovascular and all-cause mortality benefits are well-established in Finnish sauna epidemiology (Laukkanen et al., 2018). Short-term HRV and mood effects are real but highly protocol-dependent. Post-exercise cold contrast is distinct from standalone sauna and has a separate evidence base.

Evidence base

Min quality:

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