Cancer therapies save and prolong many lives, but they and the tumors they target also can exact a debilitating toll on patients' mental and emotional and cause health problems.

Studies show that children who are developing normally and are at low risk of developing antisocial behavior and conduct problems have a boost in cortisol when facing stress.

Results of a new study may one day help scientists learn how to enhance a naturally occurring mechanism in the brain that promotes resilience to psychological stress.

Researchers recently reported that roughly nine percent of U.S. adults have a personality disorder.

Schizophrenia may occur, in part, because of a problem in an intermittent on/off switch for a gene involved in making a key chemical messenger in the brain.