If you’ve ever been to a pool or resort, it’s likely that you’ve encountered a sauna before. In case you’re unaware, though, a sauna is a small room or steam bath that emits [1] dry heat from a furnace or stove. Temperatures can reach ninety degrees Celsius or slightly higher, and the rooms are typically used for refreshment and relaxation. While the health effects of saunas have been touted [2] by some online influencers, the science behind the myths is not always as clear. What is true, though, is that saunas can benefit cardiovascular, skin, and mental health.
One study of more than two thousand sauna bathers showed that over the course of twenty years, those who visited saunas regularly had lower death rates related to heart disease and stroke. The relationship between sauna use and heart health has long been hypothesized [3], but research has demonstrated that consistent sauna use in combination with regular exercise has a positive impact on blood pressure.
Cardiovascular health aside, saunas promote sweating, a process that can stand to benefit the skin microbiome. Many sauna users have reported anecdotal [4] evidence of benefits to skin from sauna use, but the research is clear: the hot air in saunas increases the production of collagen, a protein in skin responsible for skin elasticity and health. The science proves, then, that time spent in the sauna makes the skin healthier and better.
It’s not just skin and heart that benefit from the sauna, though. Saunas truly aid in relaxation, with research showing that sauna use can reduce cortisol levels in the body which are associated with stress. Regular sauna use was also associated with higher self-ratings of mental well-being as compared to those who used saunas less regularly.
Regardless of whether or not the sauna is a part of your daily routine, it’s clear that this simple vehicle for relaxation stands to have benefits far beyond those associated with mood. Who would’ve thought some hot air circulated in a sweaty room could have the potential to help reduce death rates for its users?