Are smartphones making a generation unhappy?

The promise of social media is instant human connection. But for many teens, greater use of social media mans a far greater sense of isolation, according to an increasing body of evidence. William Brangham speaks with Jean Twenge, author of "iGen" and a new article in The Atlantic, about the ways smartphones are affecting an entire generation’s mental health.


(Source: PBS NewsHour, https://www.youtube.com/watch?v=MA8q88nEEwM)