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

But around 2012, I started seeing large, abrupt shifts in teens’ behaviors and emotional states. All of a sudden, the line graphs looked like steep mountains—rapid drop-offs erased the gains of decades in just a few years; after years of gradual inclines or hollows, sheer cliffs suddenly brought traits to all-time highs. In all of my analyses of generational