Use a sauna regularly (sessions of 5 to 20 minutes, 2 to 3 times per week) to optimize cardiovascular health, stimulate cellular resilience, and maintain good hydration during exposure.

noli's read

The positive impact of the sauna on cardiovascular well-being is supported by solid data, notably the famous observational cohort study conducted by Dr. Jari Laukkanen (University of Eastern Finland, 2015) on more than 2,000 participants followed for 20 years. This work, supplemented by a 2018 study including women, shows that frequent practice is associated with better heart vitality and increased longevity. Regarding "cellular youth," research confirms that thermal stress stimulates protective proteins (HSP) that help repair our cell constituents. However, presenting this defense mechanism as a comprehensive preservation of youth remains an enticing extrapolation of molecular data, as clinical studies do not demonstrate direct rejuvenation in humans. Furthermore, because studies are primarily observational, they cannot prove a direct cause-and-effect link, as sauna enthusiasts often share other healthy lifestyle habits. Finally, the very specific hydration protocol suggested is a matter of common-sense practical advice to avoid heat fatigue, although it is not dictated by rigid scientific guidelines.

the sources

1. 1NIH Office of Dietary Supplements 2026
2. 2Manson JE et al. 2019
3. 3Bhatt DL et al. 2019
4. 4Khan SU, Lone AN, Khan MS, et al. 2021
5. 5Liao Y, Xie B, Zhang H, et al. 2019
6. 6hubermanprotocols.com (fan reference guide)