Infrared radiation heats the skin directly in a way which is similar to heat from the sun without warming the air. The radiant heat is safe, health promoting and penetrates more than 1.5 inches into the body. Because the skin is the largest organ in the body, regularly sweating in an infrared sauna can help decrease the toxic load and contribute to better health and vitality. A growing body of evidence suggests that bio-accumulated toxic load in the human body is responsible for fatigue, disease and weight gain. Saunas have also been used successfully to detoxify the body, but research shows that saunas using infrared light instead of convection heat have the best prognosis. In a study performed by Seattle-based neurologist Dr. Dietrich Klinghardt, he found that the sweat of people using a conventional sauna was 95-97% water while the sweat of those using an infrared thermal system was 80-85% water, the non-water portion consisting of toxins including heavy metals.
There is a wide body of both scientific and anecdotal evidence regarding the effectiveness of sauna heat therapy to support health benefits including: