The usual form of footbath, which is commonly done in resorts or spas, is different from the detox foot spa machines sold in the market today. Footbath have originated from a Japanese legend occurred about 1,600 years ago. It was narrated by a group of sickly people and monks who made pilgrimage.
Sun is generating energy by nuclear fusion. And nuclear fusion will emit energy in the form of gamma rays. Normally earth's ozone filtering the Ultraviolet radiation. And magnetic fields of earth deflecting the cosmic rays(charged particles).
The ozone layer is located in the stratosphere and it protects us from HARMFUL RADIATION. The ozone layer is the one that protects us from the harmful  ultraviolet radiationsâ¦ of the sun. These radiations are high  frequency waves which can cause some serious damage to the living  organisms.