Stephen Dubner: Why do people grind their teeth? Angela Duckworth: There's both awake Bruxism and sleep Bruxism. Robinhood is an investing platform that helps serious investors with their financial goals by giving them the tools to run their money on their terms. Run your money with Robinhood.
How can you break a bad habit if you’re not aware that you’re doing it? Does Barack Obama grind his teeth? And is Angela’s dentist a crook?