It’s graduation season, and new research offers yet another reason to congratulate someone who has completed at least nine years of education: They’re likely to live longer. An unusual, comprehensive study involving 1.2 million Swedes shows that students who were exposed to nine years of education rather than eight had a lower mortality rate after age 40. While the finding suggests an association between level of education and longevity, it does not establish a cause-and-effect link.
