iGen: Why Today's Super-Connected Kids Are Growing Up Less Rebellious, More Tolerant, Less Happy--and Completely Unprepared for Adulthood--and What That Means for the Rest of Us

by Jean M. Twenge

Another study of adults found the same thing: the more people used Facebook, the lower their mental health and life satisfaction at the next assessment. But after they interacted with their friends in person, their mental health and life satisfaction improved.