Hot Tub therapy, also known as hydrotherapy or hydrothermal therapy, is almost synonymous with hot tubs and spas. From early man to modern day presidents, such as Franklin D. Roosevelt, the therapeutic value of hot tubs has been known, though not fully understood. In fact, whole cities (e.g., Bath, England, Hot Springs, Arkansas) have been built around providing comfort using the earth's natural hot springs.
So what makes hot tub therapy work?
Hot tub therapy works by first relieving the body's natural pressure from gravity, then by stimulating the nerves and circulatory system. By further applying movement and air bubbles to the hot water, the nerve impulses work to enhance the body's immune system, increase circulation and digestion and even lessen sensitivities ( http://www.holistic-online.com/hydrotherapy.htm).
Furthermore, hot tub therapy helps relieve pain from arthritis, rheumatism, painful joints, varicose veins and other musculature and back disorders (http://www.aquatherapy.co.uk/).
And you thought hot tubs were only decadent little pleasures.
