Researchers knew Susannah better than her own parents. They may have even known her better than herself. Today, how spending thirty years in a psychological study warped journalist Susannah Breslin's life. If you enjoyed this episode and want to check out another, take a listen to Trauma, OCD...

Whether it's shaking hands or which side of the road to drive on, social norms dominate the way we behave. But when norms change suddenly, you get chaos. Just ask Sweden. If you'd like to hear more from today's expert, Matt featured in an episode in 2021 called Neuromarketing — how brands...