Our prehistoric ancestors lived in small intimate groups. To survive they needed to cooperate with in-group members while also competing for mates and limited resources.

Sharing secrets is one way people bond, so avoiding gossip may lead to social isolation. Someone skillful at gossip can be socially informed and have a good rapport with others. On the other hand, someone who doesn’t gossip may beco...

The awareness that others are likely talking about us can keep us in line. Among a group of friends or coworkers, the threat of becoming the target of gossip can deter “free-riders” and cheaters.