How is aging different today than it was in the past? What do young people get wrong about happiness? And what does it mean if you impulsively decide to get your ear pierced in an unusual place?

Can exercising your body boost your brain's stamina? Are some people just born lazy? And why did Angela stop reading “Us Weekly”?

Why do some activities tire your brain more than others? How exhausting is poverty? And could most of the world’s problems be solved with a sandwich?

Are Europeans more sophisticated than Americans? What’s wrong with preferring Taylor Swift to Puccini? And is Steve Levitt “Team Edward” or “Team Jacob”?

Will Angela finally break up with Philadelphia? Is New York really the unhappiest city in the U.S.? And are there trash tornadoes in the metaverse?

Are you a problem solver or an opportunity seeker? Why is it so hard to find a good leader these days? And could you be Angela’s next boss?

What risks are worth taking? When should you ignore feedback and go with your gut? And what did Stephen learn on a fishing trip with the town barber?

What’s worse: shame, guilt, or humiliation? Does Angela have psychopathic tendencies? And where’s the worst place to sit at a magic show? 

What is the purpose of negative emotions? Why do we engage with things we know will upset us? And how does Angie deal with rejection?

Is it O.K. to bother people for a good cause? Why do people donate to charity in the first place? And do those personalized address labels actually make people get out their checkbooks?