The Secret to Happiness… Is Just Love
Success
OCTOBER 5, 2022
It’s the most thorough study of human lives that’s ever been done,” said George Vaillant, director of the study from 1972 to 2004. The 1930s saw an increase in discussions on the importance of physical fitness to health and well-being. As of 2017, about 60 of the original 724 men in both studies are still alive.
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