Light therapy involves the use of a light source designed to affect the body as the sun would affect it if there were sunlight available.
Light therapy is called alternative but it has been used for years.
Putting newborn babies under intense light is a routinely prescribed way to treat jaundice. Exposing people to carefully timed bright lights can reset the biological clock, helping people overcome jet lag or cope with the stresses of shift work. Today, even conventional doctors are accepting these and other therapeutic uses of light therapy . Many people complain about feeling down, having less energy, putting on a few pounds, and having difficulty getting up in the morning throughout the dark short days of winter. People suffering from SAD experience these and other symptoms to such a degree that they feel unable to function normally.