Research.

Recent sauna studies, read closely: what was measured, by how much, and what it means for your sessions.

Sauna benefits, sorted by evidence

Heart, sleep, mood, recovery: what the studies show and what they do not.

Why the scale lies after a session, and what the heat really costs your body.

What to wear, when to shower, who throws the water: the rules in six sauna cultures.

The temperature of each sauna type, and why humidity matters more than the dial.