What triggers a smile, and how can we make it happen more often?

The effects of trauma in early life are passed on to the next generation, and the one afterward, according to a new study.

Women who spent more time on Facebook looking at friends' photos were more likely to have problems with their own body image as they compared their friends' bodies to their own. Researchers are now...

People living in low-income areas are more likely to suffer serious illness and fall victim to negative life events like losing a child or being assaulted, a new study finds.

In the pursuit of happiness, life experiences matter more than the acquisition of material objects.

This brain disorder causes dramatic mood swings from depressing lows to manic highs and affects about 5.7 million (2.6 percent) of the U.S. adult population.

Popular kids are just as likely to be targeted by bullies as marginalized kids, and may even suffer more, a new study finds.

Some studies suggest that food, scent, and climate influence dreams, but can we really make any scientific conclusions?

Any patient waiting to undergo a procedure may feel anxious. While music may help calm them, video glasses do it better, according to a new study.

By teaching a man to eat healthy, one might be able to teach him to be happy.

Researchers have succeeded in suppressing unwanted memories through active suppression.

Our facial expressions developed from the need to filter where and what we see and may have very little to do with social communication, according to new research published in Psychological Science.