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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 factors don’t matter? Vaillant identified some surprises. Cholesterol levels at age 50 have nothing to do with health in old age. While social ease correlates highly with good psychosocial adjustment in college and early adulthood, its significance diminishes over time. The predictive importance of childhood temperament also diminishes over time: shy, anxious kids tend to do poorly in young adulthood, but by age 70, are just as likely as the outgoing kids to be “happy-well.” Vaillant sums up: “If you follow lives long enough, the risk factors for healthy life adjustment change. There is an age to watch your cholesterol and an age to ignore it.”
The study has yielded some additional subtle surprises. Regular exercise in college predicted late-life mental health better than it did physical health. And depression turned out to be a major drain on physical health: of the men who were diagnosed with depression by age 50, more than 70 percent had died or were chronically ill by 63. More broadly, pessimists seemed to suffer physically in comparison with optimists, perhaps because they’re less likely to connect with others or care for themselves.
Vaillant became a kind of godfather to the field, and a champion of its message that psychology can improve ordinary lives, not just treat disease. But in many ways, his role in the movement is as provocateur. Last October, I watched him give a lecture to Seligman’s graduate students on the power of positive emotions—awe, love, compassion, gratitude, forgiveness, joy, hope, and trust (or faith). “The happiness books say, ‘Try happiness. You’ll like it a lot more than misery’—which is perfectly true,” he told them. But why, he asked, do people tell psychologists they’d cross the street to avoid someone who had given them a compliment the previous day?
In fact, Vaillant went on, positive emotions make us more vulnerable than negative ones. One reason is that they’re future-oriented. Fear and sadness have immediate payoffs—protecting us from attack or attracting resources at times of distress. Gratitude and joy, over time, will yield better health and deeper connections—but in the short term actually put us at risk. That’s because, while negative emotions tend to be insulating, positive emotions expose us to the common elements of rejection and heartbreak.
To illustrate his point, he told a story about one of his “prize” Grant Study men, a doctor and well-loved husband. “On his 70th birthday,” Vaillant said, “when he retired from the faculty of medicine, his wife got hold of his patient list and secretly wrote to many of his longest-running patients, ‘Would you write a letter of appreciation?’ And back came 100 single-spaced, desperately loving letters—often with pictures attached. And she put them in a lovely presentation box covered with Thai silk, and gave it to him.” Eight years later, Vaillant interviewed the man, who proudly pulled the box down from his shelf. “George, I don’t know what you’re going to make of this,” the man said, as he began to cry, “but I’ve never read it.” “It’s very hard,” Vaillant said, “for most of us to tolerate being loved.”
What Makes Us Happy? - Magazine - The Atlantic