What Is Therapeutic Light Therapy? Therapeutic light therapy, also called phototherapy, is a form of treatment for certain types of depression, sleep disorders, and other conditions. It involves ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? At the simplest level, different colors of light have different wavelengths.

Can you benefit from light therapy? It depends. Treatments range from nonsensical to possibly useful to those proven to be effective. Without light, there is no life. Literally, it was Dutch scientist ...