There are a lot of different ways we try to classify ourselves. Everybody wants to fit into a group and feel like they belong. One way to do this is to describe the type of friend you are through your ...

Robin Dunbar is a professor of anthropology at the University of Oxford, a renowned evolutionary psychologist and author of Friends: Understanding the Power of Our Most Important Relationships.

No matter how much everyone in a friend group wants to hang out, turning ideas into real plans can become a real challenge. Suggestions get tossed around, availability is loosely discussed, yet ...

Many of us measure our friendships by depth or quantity: Do I have enough close friends? Are they texting me back? Do they like me? But having spent the last 15 years studying happiness, I've learned ...