Everyone gets blue, but when sad, lonely, hopeless or irritable feelings prevent your getting on with your life, it may be clinical depression. Nearly 20 million Americans suffer from depression each ...

A blood draw can already reveal cholesterol levels, blood sugar, and signs of infection. Before long, it might also flag depression, not by measuring a single molecule but by reading the biological ...

A new study suggests depression may soon be detectable through a simple blood test—by tracking how certain immune cells age. Researchers found that accelerated aging in monocytes, a type of white ...

Postpartum depression affects some one in eight women in the United States. It typically occurs in the first weeks after childbirth, after a sudden drop in levels of estrogen and progesterone.

Like many first-time mothers, Lisette Lopez-Rose thought childbirth would usher in a time of joy. Instead, she had panic attacks as she imagined that something bad was going to happen to her baby, and ...