Mayo Clinic on depression

Understanding depression: What is depression?

Are you at risk?

The biology of depression

Recognizing and diagnosing depression

Types of depression

Treating depression: A treatment overview

Medications and how they work

Counseling and psychotherapy

Electroconvulsive and other biomedical therapies

Self-help strategies

Special groups and concerns: Women and depression

Older adults and depression

Childhood and teenage depression

Combined disorders

Living with a depressed person: Suicide and coping with suicide

The role of family and friends

Facing and overcoming depression: a personal story.