The sauna and steam bath are among the oldest methods of relaxation. They contribute to a number of positive effects, such as stimulation of blood circulation, increased sweating and mucous secretions, and an immunomodulatory effect. Regular visits to the sauna help to balance both the physical and spiritual components of the body. When in a sauna or bath, the appropriate temperature, humidity and time depend on the condition of each particular person. A relatively healthy person can stay in a dry hot sauna (humidity 20-40%, 80-90C) for about 17 minutes, while in a humid hot hammam (humidity 80-100%, 40-50C) for about 19 minutes. After the bath, it is recommended to rest for at least half an hour, drink refreshing juice. The frequency of visiting steam baths can be once a week. Since ancient times, various herbs with certain healing properties have been added to the bath to improve health. While in the herbal bath, the body temperature becomes high, the immune system is stimulated, while the growth of bacteria and viruses slows down. The production of white blood cells (the main agents of the immune system) is increased, as is the rate of their release into the bloodstream. It stimulates the production of interferon, an antiviral protein that also has powerful anti-cancer properties.