The fountain of rejuvenation
Regular use of the sauna primarily strengthens the immune system. The body's blood vessels are "trained" to react quickly to adjust the body temperature to hot or cold. This alternation strengthens the blood vessels and arteries, keeping them elastic. In Finnish literature, the sauna has been referred to as a "fountain of rejuvenation". Medical research is constantly giving us new answers to what the effects of exposing bare skin to hot and cold means for body and soul.