The Grant Study is part of the Study of Adult Development at Harvard Medical School. It is a 75-year longitudinal study of 268 physically- and mentally-healthy Harvard college sophomores from the classes of 1939–1944. It has run in tandem with a study called "The Glueck Study," which included a second cohort of 456 disadvantaged nondelinquent inner-city youths who grew up in Boston neighborhoods between 1940 and 1945. The subjects were all male and of American nationality. The men continue to be...
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