A 25-year-old American with a university degree can expect to live a decade longer than a contemporary who dropped out of high school. researchers have long known that the rich live longer than the poor, yet this education gap is less well documented. And while the average American's (expect) life span ( 寿 命 ) has been flat in recent years, that of the one-third with a bachelor's degree (continue) to lengthen.
What is the link between schooling and longevity? Some argue that better-educated people develop (healthy) lifestyles: each additional year of study reduces the chances of being a smoker and of being overweight. The better educated earn more, which in turn (associate) with greater health. Ms. Case and Mr. Deaton of Princeton University argue that changes in labour markets, including rise of automation and increased demand for (high) educated workers, coupled with the rising costs of employer-provided health care, have depressed the supply of well paid jobs those without a degree. This may be contributing to higher rates of alcohol and drug use and other (death) of despair. In order for America's overall life span (start) climbing again, improvements will be needed across all social groups, not just among the privileged few.
