Your skin is the largest organ in your body. Sweating is one of the body’s safest and most natural ways to heal and maintain good health through ridding the cells of stored toxins such as heavy metals and chemicals. Far infrared rays are safe, like visible light, and the rays penetrate much deeper into your body making you swear profusely without the extreme temperatures of a traditional sauna. The typical dry head of a far-infrared sauna is between 125-140 degrees Fahrenheit. Pregnant women, young children, people with pacemakers should avoid saunas.