Caloric Restriction extends life

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" The price of leanness is eternal vigilance, " said Hansen, who

presented her research Friday at the annual meeting of the American

Association for the Advancement of Science.

Hansen has long studied the effects of calorie restriction in roughly

300 rhesus monkeys.

Cutting calories can pay off when it comes to longevity: Monkeys fed

30 percent less over the long term extended their lifetimes to 30

years from an average of 23 years, Hansen said.

The slimmer monkeys staved off the diabetes, high cholesterol,

hypertension and other weight-related ailments that typically

shortened the lives of their heavier peers, she added.

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