Infrared color-light therapy heats the body with light. The radiant heat penetrates the skin to produce a gentle warming inside the body and heals a variety of ailments. A traditional sauna heats the air temperature to over 180 degrees Fahrenheit, making it uncomfortable to sit in. Because the heat is outside the body, a regular sauna does not penetrate as deeply into the cells as an infrared sauna. Studies show that infrared saunas expel seven times more toxins, including environmental and heavy-metal toxins.