The Picks: Light Therapy

LED stands for light emitting diode. Basically, LED is a light source that emits infrared light and heat at different wavelengths that penetrate into skin cells. They were made famous by NASA for plant growth experiments. They have been studied a lot, they are not dangerous and they contain no harmful UV rays. They are actually safe for the eyes, though many units come with goggles for the sake of brightness.

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