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 ...

Have you noticed you're sleeping a little longer? Maybe you're experiencing a shift in appetite — craving more sweets or pasta. In autumn, our bodies sense the change in light as the dark winter ...