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新华社北京9月3日电,人们通常相信限制饮食的热量能预防机体老化,从而延长寿命。但是美国一项长达20多年的动物实验显示,限制热量摄入虽有益健康,但无助长寿。美国国家老龄问题研究所从20多年前就一直饲养121只猕猴,并进行研究分析。猕猴因为生理上与人类接近,而且寿命比较长,所以科学家偏好用它们来做一些长期的跟踪研究。
Xinhua News Agency, Beijing, September 3, People usually believe that limiting dietary calories can prevent the aging of the body and prolong life expectancy. However, an animal experiment conducted in the United States for more than 20 years shows that limiting caloric intake, while beneficial to health, can not help prolonging life. The National Institute on Aging has been raising 121 macaques from more than 20 years ago and has conducted research and analysis. Rhesus macaques, because of their close physical proximity to humans and their longer lifespan, are the scientists who prefer to use them for long-term follow-up studies.