Sunday Pick: How many friends do I need?

Each Sunday, TED shares an episode of another podcast we think you'll love, handpicked for you… by us. How many relationships should we maintain, and what are the different kinds of friendships we need anyway? In this episode of Am I Normal?,  a podcast from the TED Audio Collective, data scientist Mona Chalabi asks evolutionary psychologist Robin Dunbar what he's learned from been studying social relationships for 50 years. Then, Mona maps out her own relationships against the averages -- and invites you to do the same.You can find the full text transcript along with studies cited in this episode at go.ted.com/AIN2. Special thanks to guest Robin Dunbar for lending his expertise.