一项史无前例的新陈代谢研究指出，不能将中年发福归咎于新陈代谢变慢。
The study, of 6,400 people, from eight days old up to age 95, in 29 countries, suggests that metabolism remains "rock solid" throughout mid-life.
这项涵盖了29个国家6400人的研究显示，人在中年时期的新陈代谢一直"稳如磐石"。研究对象中，最小的刚出生8天，最高龄的已经95岁。
It peaks at the age of one, is stable from 20 to 60, and then inexorably declines.
新陈代谢在1岁时达到顶峰，20岁到60岁期间保持稳定水平，60岁后开始不可阻挡地变慢。
And it "cannot be a coincidence" that diseases of old age kicked in as metabolism fell.
此外，老年病在新陈代谢变慢时到来"绝非偶然"。
Prof Tom Sanders, from King's College London, said: "Interestingly, they found very little differences in total energy expenditure between early adult life and middle age - a time when most adults in developed countries put on weight. These findings would support the view that the obesity epidemic is fueled by excess food energy intake and not a decline in energy expenditure."
伦敦国王学院的汤姆•桑德斯教授称："有趣的是，研究人员发现，青年和中年时期的新陈代谢速度差异很小，而发达国家的大多数成年人都是在中年时期发胖的。这些研究结果支持了一个观点，就是中年发福是因为食物摄取过量而不是新陈代谢变慢。"
