Over the last few decades numerous studies have shown negative states, such as depression, anger, anxiety, and hostility, to be detrimental to cardiovascular health.

Stereotypes suggest women are more cooperative than men, but an analysis of 50 years of research shows that men are equally cooperative, particularly in situations involving a dilemma that pits the interests of an individual against the interests of a group.

Exposure via the media to activities such as street racing, binge drinking and unprotected sex is linked to risk-taking behaviors and attitudes.

Current diagnostic procedures for posttraumatic stress disorder (PTSD) fail to adequately reflect research into the broad nature of a traumatic event.

Children whose mothers return to work before their offspring turn 3 are no more likely to have academic or behavioral problems than kids whose mothers stay at home.