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. As of 2017, about 60 of the original 724 men in both studies are still alive. This article originally appeared in the September 2017 issue of SUCCESS magazine and has been updated.
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