Just about everyone has experienced the relaxing qualities of a sauna. You feel the heat on your skin instantly, which may make you assume that all saunas warm the body up from the outside, inward, but full spectrum infrared saunas are unique from traditional saunas in that the infrared wavelength of light deeply penetrates the body and warms you from the inside out (2). Because of this, infrared saunas stimulate the detox process of the body very efficiently as it works at the cellular level of the organs and sweat glands (2).