If you're a parent or a teacher, you've probably wondered how to balance play and safety for the kids in your care. You don't want to put children in danger, but you also don't want to rob them of the joy of exploration. This week, we talk with psychologist Peter Gray about how this balance has...

We've all had those days when all we want is a little treat. Maybe it's a bag of chips, an ice cream sundae or a glass of wine. But sometimes, these desires become all-consuming. This week on the show, psychiatrist Judson Brewer helps us understand the science of cravings, and how we should...