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Fitness Linked to Smartness

Any school kid can tell you: nerds are not usually the most athletic specimens. But a new study suggests that young men who are physically fit tend to be more intelligent. The results appear in the Proceedings of the National Academy of Sciences.

每个还在念书的小朋友都知道：书呆子都是四体不勤，运动无能。但是《美国科学院院刊》的一篇研究称年轻人勤于锻炼，身体匀称反过来会更加头脑聪明。

Animal studies have long shown a link between physical activity and better memory. And in humans, aerobic exercise has been found to boost cognitive function in the elderly. But studies in young adults have yielded conflicting results. Strenuous physical activity in adolescents actually seemed to make mind matters worse.

一直以来，动物实验证明了运动与好记性息息相关。而有氧运动更会让人类垂垂老矣时保持良好的认知功能。但针对年轻人这方面的研究结果就一直争议不断，甚至说剧烈运动会让青少年头脑更不灵光。

To try to settle the issue, scientists in Sweden reviewed the records of more than a million men who enlisted for military service at the age of 18. And they found that cardiovascular fitness, but not muscle strength, was associated with overall intelligence (at least as measured by the Swedish army). And when they consulted additional national databases, they found that physical fitness at the age of 18 also foreshadowed greater academic achievement later in life. Even among the twin pairs, the fitter brother tended to be the smarter.

为了解决这个问题，瑞典科学家们调查了上百万曾在18岁时服兵役的青年男子，他们发现并不是一身肌肉就会智力全面发展，与此相关的是心血管的健康（至少在瑞典是这样～）。之后这些科学家又查询了全国范围内的数据库，又发现在18岁时保持身材匀称、健康的人大都会在未来人生中取得更高的学术成就。就连双胞胎中，苗条的那一个也会比另一个更聪明。

So remember, a nerd may not be athletic.  But a lot of athletes may be harboring an inner nerd.

记住这条新规则：书呆可能跑不快，但爱好运动的人内心一定也有爱书的一面。

—Karen Hopkin

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