may now belong to Cape East Spa in Haparanda, Sweden, which also holds 150 people but is more spacious. However, in Czeladz, south Poland, there is now a sauna for 300 people, sporting light shows, theatre and needing several sauna masters. Use A modern sauna with an electric stove usually takes about 15–30 minutes to heat up. Some users prefer taking a shower beforehand to speed up perspiration in the sauna. When in the sauna, people often sit on a towel for hygiene and put a towel over their heads if the face feels too hot but the body feels comfortable. In Russia, a felt "banya hat" may be worn to shield the head from the heat; this allows the wearer to increase the heat on the rest of the body. The temperature of one's bath can be controlled via: the amount of water thrown on the stove: this increases humidity, so that sauna bathers perspire more copiously the length of one's stay in the sauna positioning: the higher benches are hotter, whereas the lower benches are cooler. Children often sit on the lower benches. The heat will be greatest closest to the stove. Heating from the air will be lower on the lower benches as the hot air rises. The heat given by the steam can be very different in different parts of the sauna. As the steam rises directly upwards, it will spread across the roof and travel out towards the corners, where it will then be forced downwards. Consequently, the heat of fresh steam may sometimes be felt most strongly in the furthest corners of the sauna. Users increase the duration and the heat gradually over time as they adapt to the sauna. When pouring water onto the stove, it will cool down the rocks, but carry more heat into the air via advection, making the sauna warmer. Perspiration is the result of autonomic responses trying to cool the body. Users are advised to leave the sauna if the heat becomes unbearable, or if they feel faint or ill. Some saunas have a thermostat to adjust the temperature, but the owner of the sauna and the other bathers expect to be consulted before changes are made. The sauna stove and rocks are very hot—one must stay well clear of them to avoid burns, particularly when water is thrown on the rocks, which creates an immediate blast of