Light box therapy can help treat circadian rhythm disorders and mood issues. The light in a light box should have an ...

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 ...

Bright light boxes mimic natural light. We asked experts if they worked. Ask Well Bright light boxes mimic natural light. We asked experts if they worked. Credit...Eric Helgas for The New York Times ...