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21英语教师网 > 备课资源 > 拓展阅读 > 正文
Run together to keep fit
作者:21ST    来源:初中版第123期    日期: 2010-12-07
外研版初三年级:Fitness

关键词:Spa, healthy food

话题归类:健康Health



你觉得一个人跑步孤独吗?其实这样对健康不好。


YOU may want to get up early and go running tomorrow.

Good, but remember to run with a friend.

Why? US scientists found that running by oneself could be bad for your health.

If you run by yourself, your brain (大脑) could be stressed (压抑的). Then it won't make new cells (细胞).

Scientists tested this on two groups of rats. In the first group, each rat exercised alone on a wheel (轮子). The second group all ran together on one wheel.

After 12 days, the second group had more brain cells - twice (两倍的) as many as the first group.

Researchers also found that the first group made fewer cells than those who didn't run at all.

Scientists say that running might not always be good for you. "If you have no one to talk to, good exercise could become bad for the brain," they said.



关键词:外研版 初三 Fitness 健康Health



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