The hot tubs (or SPA) are historically being used for a longer period of time than people usually think. For the hundreds of years romans dedicated huge buildings for bathing procedures; most of them were heated rooms. People of various professions used to spend time bathing as it was a place for social gatherings and business meetings. Japanese gain the knowledge about the hygiene and the benefits of regular bathing quite early. They had small saunas, individual SPA – named “Ofuro”. Later, during the 1900s, SPA resorts became popular in the United States of America; it came as a fashion from Europe. Firstly, these resorts were situated near the natural hot streams, but later the water was heated artificially. SPA resorts used to attract wealthy people, who were enchanted by the stories about the magical healing qualities of these places and that it can heal arthritis and other illnesses.