Seasonal affective disorder, or SAD, is a type of recurring major depression kicked off by seasonal change—usually starting as days get darker and shorter in the fall and relenting in the spring ...

This is thought to be the most common type of depression. It is triggered by a traumatic, difficult or stressful life event. People affected will feel low, irritable, anxious or even angry.

As many of us know, not all depression is the same. So, researchers at Stanford Medicine have combined brain imaging with ...

This article examines what depression is and what causes it, as well as types of depression, treatment, and more. Depression is a mood disorder that causes persistent feelings of sadness ...