The Anxious Generation: How the Great Rewiring of Childhood Is Causing an Epidemic of Mental Illness

by Jonathan Haidt

When I began examining boys’ mental health trends for this book, I came across a striking finding. Throughout my research career, it has been common knowledge that as adolescents reach puberty, boys and girls exhibit distinct patterns in their mental health challenges. Girls typically exhibit higher rates of internalizing disorders like depression and anxiety, turning their emotions and suffering inward. Boys, on the other hand, tend to exhibit higher rates of externalizing disorders, turning their emotions outward and engaging in high risk or antisocial behavior that often affects others, such as drunk driving, violence, and drug abuse. But around 2010, something unprecedented started happening: Both sexes shifted rapidly toward the pattern traditionally associated with females. There has been a notable increase in agreement with items related to internalizing disorders (such as “I feel that I can’t do anything right”) for both sexes, with a sharper rise among girls as you can see in figure 7.2. At the same time, agreement with items related to externalizing disorders (such as “how often have you damaged school property on purpose?”) plummeted for both sexes, more sharply for boys. By 2017, boys’ responses looked like those from girls in the 1990s.