03/09/2011 02:48 pm ET Updated May 25, 2011

The Longevity Project: Study Finds Parental Divorce During Childhood Strongest Predictor Of Early Death

What can 1,500 Americans born a century ago, most of them long dead, tell us about the secret to a long life? Plenty, according to Howard S. Friedman and Leslie R. Martin, two psychologists who, in "The Longevity Project," mine an eight-decade research effort for answers to the kinds of questions that sent Ponce de León searching for the Fountain of Youth.

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