While wiping fear from our brains may seem attractive, the emotion is an essential part of our behavioral repertoire.

Researcher Abigail Marsh tells the tale of her very personal brush with extreme altruism.

Feeling for other people may not come naturally to psychopaths, but they could be capable of putting themselves in others’ shoes.

The brains of psychopaths have a different structure than healthy brains, perhaps explaining their antisocial and impulsive behaviors.