Sauna originated in Finland, also known as Finnish bath, which refers to the process of using steam to treat the human body in a closed room, and has a history of more than 2,000 years. Usually the temperature in the sauna can reach above 60℃, and the repeated hot and cold stimulation of dry steaming and flushing of the whole body causes the blood vessels to expand and contract repeatedly, which has the effect of enhancing blood vessel elasticity and preventing vascular sclerosis.

The high temperature in the sauna room causes blood vessels to dilate, increasing blood circulation speed and ensuring that blood can flow smoothly to all parts of the body, delivering sufficient oxygen and nutrients to tissues and organs and removing metabolic wastes.

Regular cleaning: The sauna should be cleaned after each use. Wipe the walls, floors, seats and other surfaces in the sauna with a damp cloth to remove sweat, dander and other dirt. Make sure to clean thoroughly and wipe the surface with a dry cloth after cleaning.

A traditional sauna is typically heated by a sauna stove or heater. The most common type is a wood - burning stove, but electric heaters are also widely used. The stove is usually made of metal and is designed to withstand high temperatures.

After each use, use a soft, damp cloth to wipe the interior surfaces of the sauna, including the benches, walls, and floor. This helps to remove sweat, dirt, and other residues. Pay special attention to areas where people touch or sit, as these can accumulate more grime.