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Is eating less the key to living longer? A sparse diet has extended the life span of monkeys, adding support to the notion that eating less slows aging in people, too. “Caloric restriction” makes worms, flies and mice live longer, so to see if it works for primates, a team led by Richard Weindruch of the University of Wisconsin- Madison monitored 76 rhesus macaques for 20 years. The team fed half of them 30 percent fewer calories throughout adulthood. Today, 37 percent of these animals are alive, compared with 13 percent of the control group. “If caloric restriction does not extend human life span, we’re an exception on the planet,” says gerontologist David Sinclair of Harvard University. New Scientist magazine
