Generations: The Real Differences Between Gen Z, Millennials, Gen X, Boomers, and Silents—and What They Mean for America's Future

by Jean M. Twenge

The number of teens and young adults with clinical-level depression more than doubled between 2011 and 2021 (see Figure 6.35). There is a full-blown mental health crisis among young people, and it was building long before the COVID-19 pandemic.