Protocol

Sauna

Sitting in a hot sauna for 10 to 20 minutes, a few times a week.

EffortEasy
CostPaid
Time10–20 min, 2–4 days a week
Best timeAny time

Pairs well withCold Exposure, Zone 2 Cardio, Stay Hydrated

Evidence-backed benefits

How Sauna can help, goal by goal, with the studies behind each score.

Healthy Aging

11XP

In a 20-year study of 2,315 Finnish men, those using a sauna 4–7 times a week died at a lower rate (31%) than those going once a week (49%), though this cannot prove the sauna was the cause.

Studies1 2 3

Blood Pressure & Circulation

10XP

In one eight-week trial, adding a 15-minute sauna after exercise lowered systolic blood pressure by 8 mmHg more than exercise alone, and blood pressure drops for a short time after any sauna session.

Studies1 2

How to read XP

Each score is for this protocol and that specific goal, not a general rating.

XP combines how reliable the research is with how much difference it usually makes. Higher means stronger evidence for that protocol and that goal.

Limited<15 XPModest15–27 XPModerate28–44 XPReliable45–69 XPHigh70+ XP

How to do it

Two to four times a week, for example after a workout.

1
Start with 5–10 minutes
At a temperature you can tolerate, usually 70–90°C in a traditional sauna.
2
Build up to 15–20 minutes
The Finnish study found lower risk with longer and more frequent sessions.
3
Cool down and drink water afterwards
You lose a lot of fluid as sweat.
4
Leave if you feel dizzy or unwell
Do not push through it.

The good-enough version

One or two 10–15 minute sessions a week.

Common mistakes

Drinking alcohol before or during
Staying in while dizzy
Not replacing fluids
Going in alone when unwell

Your journey

Relaxation and a short dip in blood pressure the same day. Longer-term effects are uncertain. An estimate from the studies' timelines, not a promise: everyone responds differently.

Blood Pressure & Circulation

Week 2 → Week 8

Healthy Aging

Month 3 → 1 year

From the first noticeable effect to roughly full strength. Colour follows the XP tier of each benefit.

Make it a habit

These gains come from steady use, not a single dose. Keep Sauna in your routine for about 1 year before you judge it.

Safety

What to know before you try Sauna.

Safety rating

Use with care

Dose and timing matter.

Dizziness and dehydrationDrink water, skip alcohol, and leave if you feel light-headed.
Heart conditions, pregnancyCheck with your doctor first if you have a heart condition or are pregnant.
Evidence from one groupThe long-term findings come from Finnish men only and cannot prove cause.

Check with a doctor first if you have unstable heart disease, a recent heart attack, severe aortic stenosis, low blood pressure, or are pregnant.

General information, not medical advice. If you are pregnant, take medication or have a health condition, check with a doctor or pharmacist first.