The root of hydrotherapy lies in the belief that water is the essence of life. A major part of our body is made up of water and we can only live a few days without drinking it.
Water is also a constituent of most foods.
The beneficial power of water has been valued since ancient times. Steam baths were popular among the ancient Greeks and Turks. At Lourdes, in France, there is a spa Christian Shrine. Many people believe that miracles have occurred there. There are many ways of using water for therapy.