How America Got Mean

Over the past eight years or so, I’ve been obsessed with two questions. The first is: Why have Americans become so sad? The rising rates of depression have been well publicized, as have the rising deaths of despair from drugs, alcohol, and suicide. But other statistics are similarly troubling. The percentage of people who say they don’t have close friends has increased fourfold since 1990. The share of Americans ages 25 to 54 who weren’t married or living with a romantic partner went up to 38 percent in 2019, from 29...