Key Takeaway
Large Finnish study showing 4-7 sauna sessions per week associated with 61% lower stroke risk compared to once weekly use.
Summary
Prospective study of 1,628 Finnish men and women examining sauna frequency and stroke risk over 15 years.
Key findings:
- 4-7 sessions/week: 61% lower stroke risk
- 2-3 sessions/week: 14% lower risk
- Benefits independent of physical activity and other risk factors
- Dose-response relationship observed
Proposed mechanisms:
- Improved endothelial function
- Reduced arterial stiffness
- Lower blood pressure over time
- Reduced systemic inflammation
Clinical significance:
Adds stroke prevention to sauna's cardiovascular benefits, supporting its role in brain health and longevity.