An expanding waistline and other middle-age vices are not only bad for your heart – they could cause your brain to shrink, warn researchers. 研究人员们警告，无节制增长的腰围与其他中年危机的表征不仅对于你的心脏健康大有坏处，同时还可能引发大脑的萎缩。

Smoking, diabetes and high blood pressure also take their toll on the grey matter, having an effect on brainpower just ten years later.

吸烟、肥胖与高血压同样会埋下“祸根”，带来不良的后果，对于智力的影响将在短短十年之后显现出来。

Researchers said doctors could use the information to pick out patients at a higher risk of dementia and encourage them to improve their lifestyles while there was still time.

研究者们表示，医生们应该利用这样的信息来区隔出有可能会患上老年痴呆的高危人群，并鼓励他们，在还有时间来得及挽回的情况下，应该尽量改善他们的生活方式。

More than 1,300 men and women in their 50s and 60s had their weight and height measured at the start of the U.S. study and had blood pressure, cholesterol and diabetes tests.

在这项研究的一开始，有超过1300名年龄介于50岁和60岁之间的男性女性接受升高以及体重的测量，同时他们还进行了血压、胆固醇水平以及糖尿病方面的测试。

Scans to measure brain volume were carried out over the next ten years and mental tests were also run on participants.

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