The United States is experiencing an extreme teenage mental-health crisis. It is one of the most troubling and fascinating social phenomena in the country today. From 2009 to 2021, the share of American high-school students who say they feel “persistent feelings of sadness or hopelessness” rose from 26 percent to 44 percent, according to a new CDC study. This is the highest level of teenage sadness ever recorded. Jonathan Haidt, a social psychologist at New York University, joins the podcast to explain why. Haidt is the author of The Righteous Mind, and the coauthor of The Coddling of the American Mind. He and Derek debate the role of social media, the evolution of parenting, and the deep root of anxiety in modern life.Host: Derek ThompsonGuest: Jonathan HaidtProducer: Devon ManzeLearn more about your ad choices. Visit podcastchoices.com/adchoices