The brain may be involved in triggering the life-extending effects of a calorie-restricted diet, new research shows.
Scientists first observed in the 1930s that feeding animals about 30 percent fewer calories than normal extended the animals’ life spans by 30 to 40 percent. The effect emerged in several animal species, including roundworms, mice, dogs, and monkeys, and the cause seemed to be physiological changes in muscle and fat tissues.
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