Sauna use releases heat shock proteins in the body. In short it adapts the body to stress, physically changing your physiology to better adapt to stress.

Using saunas reduce oxidative stress in the body and tackle inflammation in the body.

Excreting toxicants through heavy sweating can help to relieve the body of heavy metals and other toxicants we come in contact with on a daily basis.

Sauna has similar adaptive hormesis responses to exercise. In short, the impact on your cardiovascular system of sauna replicates exercise to your body.

Research in atheletes have found transient increases in blood plasma levels for athletes, which could play a huge role in athletic performance.