概述：

接受运动训练之后，人的反应速度可能会加快，这是因为与衰老有关的机能衰退实际上源于体质下降。。。

Hints:

Daniel M. Landers

Arizona State University

A corresponding control group that didn't exercise showed no improvement. This boost in reaction time after exercise training may occur because declines associated with getting old could actually stem from declines in physical condition. Some scientists speculate the reduction in mental function often attributed to getting old may really be a penalty of neglecting to stay physically active, in addition to related factors such as medicines and poor diet. "In older people, an exercise program appears important for brain maintenance," says Daniel M. Landers, professor of exercise science at Arizona State University, who recently published an article reviewing the scientific literature on activity's effect on the brain. Numerous studies show that children who engage in regular physical activity do better in school than their inactive classmates.
对照组没有经过锻炼，其反应速度没有提高。 接受运动训练之后，人的反应速度可能会加快，这是因为与衰老有关的机能衰退实际上源于体质下降。一些科学家推测，除了药物作用和饮食不当等相关因素外，常常归咎于衰老的大脑功能下降实际上可能是不注意保持体育运动带来的一种后果。 亚利桑那州立大学的运动学教授丹尼尔•M. 兰德斯最近发表了一篇文章，对有关运动对大脑影响的科学文献进行了综述。他说：“对老年人来说，锻炼计划对维持大脑功能显得非常重要。” 许多研究表明，经常进行体育锻炼的孩子，在学业上比不活动的同学优秀。