LongevityGearLab

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Science-backed reviews of longevity tools, biohacking gear, and human optimization equipment.

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The interior of a traditional wooden sauna with bench and heated stones, soft warm light through a small window, no people
Heat therapy9 min read

Sauna for longevity: what the Finnish cohort data actually shows

The most compelling epidemiological evidence for a single lifestyle intervention on cardiovascular mortality comes from a 20-year Finnish cohort study tracking 2,300 men and their sauna habits. Here is what the research shows, what it doesn't, and what an evidence-based sauna protocol looks like.

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