A small, wood-lined room or building heated to a high temperature where people sit to relax and sweat. The word comes from Finnish, where it traditionally refers to a bath using steam produced by throwing water on hot stones.
A sauna session can be a social affair in which the participants disrobe and sit or recline in temperatures typically between 70°C (158 °F) and 100°C (212 °F). This induces relaxation and promotes sweating.
Saunas can be divided into two basic styles: conventional saunas that warm the air or infrared saunas that warm objects. Infrared saunas may use various materials in their heating area such as charcoal, active carbon fibers, and other materials.
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