The action of heat: dilates blood vessels, causing more blood to circulate near the surface of your skin. This action bathes cells in oxygen-rich blood and allows a small amount of toxins to be released through the skin. The action of cold: constricts your capillaries, and shunts the blood to the core. It is here that the majority of toxins are removed as the blood filters through the internal organs. The blood is then replenished with fresh oxygen and pumped back to the rest of the body to begin the ongoing cycle. The process of stimulating the circulatory system with hot and cold, detoxifies and bathes your cells in fresh oxygen-rich blood; bringing youthfulness to your mind and body.