This week, the American Psychological Association issued its first-of-kind guidelines for parents to increase protection for children online. It comes at a time of rising rates of depression and anxiety among teens.This episode, NPR science correspondent Michaeleen Doucleff looks into the data on how that seismic change has shifted the mental health of teenagers. In her reporting, she found that the seismic shift of smartphones and social media has re-defined how teens socialize, communicate and even sleep.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy