(N.Y. TIMES) For more than 20 years, the rhesus monkeys were kept semistarved, lean and hungry. The males' weights were so low they were the equivalent of a 6-foot-tall man who tipped the scales at just 120 to 133 pounds.
The hope was that if the monkeys lived longer, healthier lives by eating a lot less, then maybe people, their evolutionary cousins, would too.
Some scientists began severely restricting their own diets. The results of this major study by the National Institute on Aging are in. But it didn't bring the vindication that calorie-restriction enthusiasts anticipated.
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