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Genes only count for 1/4 to 1/3 of longevity

“‘Genes account for one-fourth to one-third of longevity,’ estimated Howard Friedman, a professor of psychology at the University of California (Riverside) and the coauthor of The Longevity Project, published this year. ‘That leaves well over half not accounted for.’ Most of the rest, for better or worse, is up to more »