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Dr. Roy Walford, free-spirited UCLA gerontologist who pioneered the idea of restricting food intake to extend life span in his research lab at UCLA, 1976. Photo by John G. Zimmerman
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Dr. Roy Walford, free-spirited UCLA gerontologist who pioneered the idea of restricting food intake to extend life span in his research lab at UCLA, 1976. Photo by John G. Zimmerman