Understanding the "Good Energy" from the Sun Simply put, it is a form of energy that heats objects without having to heat the air in between. This invisible band of light that can be felt in the form of heat principally comes from the sun. Human bodies naturally send and receive far infrared waves from each other. This is the same principle behind the centuries-old therapeutic properties of palm healing.   Between the Sun, Infrared Thermal System and conventional saunas The infrared heat in Allay's Infrared Thermal System is the same as the beneficial heat emitted by the sun and that which is naturally produced by our bodies to keep us warm. As opposed to near infrared energy (6.0 to 8.0 microns short wavelength) that heats substances from the surface to the interior, far infrared energy (8.0 to 15.0 microns long wave) penetrates uniformly and up to 1.5 inches into the body. This accounts for the therapeutic advantages of infrared thermal systems over conventional saunas that employ hot air.   > Beauty FAQ's > Health FAQ