Last fall, I spent about a month in the file room of the Harvard Study of Adult Development, hoping to learn the secrets of the good life. The project is one of the longest-running—and probably the most exhaustive—longitudinal studies of mental and physical well-being in history. Begun in 1937 as a study of healthy, well-adjusted Harvard sophomores (all male), it has followed its subjects for more than 70 years.
From their days of bull sessions in Cambridge to their active duty in World War II, through marriages and divorces, professional advancement and collapse—and now well into retirement—the men have submitted to regular medical exams, taken psychological tests, returned questionnaires, and sat for interviews.
The files holding the data are as thick as unabridged dictionaries. They sit in a wall of locked cabinets in an office suite behind Fenway Park in Boston, in a plain room with beige carpeting and fluorescent lights that is littered with the detritus of many decades of social-scientific inquiry: a pile of enormous spreadsheet data books; a 1970s-era typewriter; a Macintosh PowerBook, circa 1993. All that’s missing are the IBM punch cards used to analyze the data in the early days.