Far infrared radiation is the light rays radiated by the sun. This type of light is in between the visible light spectrum and the electromagnetic spectrum. Inside every infrared sauna there is a heating component that produces the infrared radiant energy. It is similar to the heat generated by the sun but without the harmful ultraviolet and radiation that cause many skin cancers.
The heaters of far infrared saunas work by a technology originally developed by a Japanese scientist name Dr. Tadashi Ishikawa in 1965, he was a member of the Research and Development Department of Fuji Medical.
Far infrared heat waves produce by an infrared sauna work in very similar ways as the light waves of the sun. The radiant energy warm you up just like the way when you go sun bathing, the direct heat on the skin just feel so good. Scientists had known for a long time the benefits of the healthy light rays from the sun, that is the reason why far infrared radiation, FIR, has been studied closely.
Even though the sun provides benefits to us, many people also know that it causes skin cancer and had avoided the sun as much as possible for this reason. It is the gamma radiation, microwaves, and harmful UV rays that the sun emits that are damaging to our skin. We can enjoy the beneficial far infrared radiation from the sun without the harmful side effects by using an far infrared sauna.
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