Learn.

The short reads from the Sauna Metrics app: what the heat does to your body, and how to use it well. Each one ends with the studies it draws on.

Who should avoid the sauna

Conditions and medicines that make the heat risky.

What a 20-year Finnish study found about regular sauna bathing.

The rhythm most studies use, and how to build up to it.

How much water a session costs, and how to replace it.

Why an evening session can help you fall asleep.

Alternating the sauna with cold water, and what little we know about it.

When to skip the sauna, and when to get out.