1937-up

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.

[...]

...[A]s the Grant Study men entered middle age—they spent their 40s in the 1960s—many achieved dramatic success. Four members of the sample ran for the U.S. Senate. One served in a presidential Cabinet, and one was president. There was a best-selling novelist (not, Vaillant has revealed, Norman Mailer, Harvard class of ’43). But hidden amid the shimmering successes were darker hues. As early as 1948, 20 members of the group displayed severe psychiatric difficulties. By age 50, almost a third of the men had at one time or another met Vaillant’s criteria for mental illness. Underneath the tweed jackets of these Harvard elites beat troubled hearts. Arlie Bock didn’t get it. “They were normal when I picked them,” he told Vaillant in the 1960s. “It must have been the psychiatrists who screwed them up.”

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Most psychology preoccupies itself with mapping the heavens of health in sharp contrast to the underworld of illness. “Social anxiety disorder” is distinguished from shyness. Depression is defined as errors in cognition. Vaillant’s work, in contrast, creates a refreshing conversation about health and illness as weather patterns in a common space. “Much of what is labeled mental illness,” Vaillant writes, “simply reflects our ‘unwise’ deployment of defense mechanisms. If we use defenses well, we are deemed mentally healthy, conscientious, funny, creative, and altruistic. If we use them badly, the psychiatrist diagnoses us ill, our neighbors label us unpleasant, and society brands us immoral.”

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What allows people to work, and love, as they grow old? By the time the Grant Study men had entered retirement, Vaillant, who had then been following them for a quarter century, had identified seven major factors that predict healthy aging, both physically and psychologically.

Employing mature adaptations was one. The others were education, stable marriage, not smoking, not abusing alcohol, some exercise, and healthy weight. Of the 106 Harvard men who had five or six of these factors in their favor at age 50, half ended up at 80 as what Vaillant called “happy-well” and only 7.5 percent as “sad-sick.” Meanwhile, of the men who had three or fewer of the health factors at age 50, none ended up “happy-well” at 80. Even if they had been in adequate physical shape at 50, the men who had three or fewer protective factors were three times as likely to be dead at 80 as those with four or more factors.

What Makes Us Happy? (The Atlantic, June 2009)

If that's not enough to get you to go read the full article, I'm not sure what would be. :-)