The biology of our best and worst selves | Robert Sapolsky

How can humans be so compassionate and altruistic -- and also so brutal and violent? To understand why we do what we do, neuroscientist Robert Sapolsky looks at extreme context, examining actions on timescales from seconds to millions of years before they occurred. In this fascinating talk, he shares his cutting edge research into the biology that drives our worst and best behaviors. The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers a