Paul Piff: Does money make you mean?

Paul Piff: Does money make you mean?

It's amazing what a rigged game of Monopoly can reveal. In this entertaining but sobering talk, social psychologist Paul Piff shares his research into how people behave when they feel wealthy. (Hint: badly.) But while the problem of inequality is a complex and daunting challenge, there's good news too. (Filmed at TEDxMarin.)

Pamela Meyer: How to spot a liar

Pamela Meyer: How to spot a liar

Sandra Aamodt: Why dieting doesn't usually work

Sandra Aamodt: Why dieting doesn't usually work