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“四肢发达”与“脑筋聪明”
一切中小学的孩子或许都会以为：书呆子一般不怎么拿手运动。但一项研讨标明，对年青男性而言，身体健康往往意味着他比他人更聪明。该研讨成果宣布在《美国科学院院刊》（Proceedings of the National Academy of Sciences）上。
长期以来的动物研讨标明，体育锻炼与更好的记忆力相关；关于人类的研讨显现，有氧运动能大大的提高老年人的认知功用。但在年青人身上却得出了与之相对立的成果：剧烈运动好像会使青少年的心智情况变得更糟。
为了弄清楚这究竟是怎么回事，瑞典的科学家回忆了一百多万名18岁应征入伍男性的记载，发现与全体智力相关的不是肌肉质量，而是心血管健康（至少瑞典戎行的丈量成果如此）。在查阅更多的国家数据库时，他们发现人在18岁时更好的身体素质也预示着
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 theProceedings of the National Academy of Sciences.
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.Strenuousphysical activity in adolescents actually seemed to makemind mattersworse.
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 alsoforeshadowed...[full transcript]
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