研究人员发现人们跑步后在血液里所产生的内啡肽是圣体对压力的反应之一，它不能随着血液循环进入大脑。
Researchers could detect endorphins in people's blood after a run, but those endorphins were part of the body's stress response and could not travel from the blood to the brain.
从事强烈有氧运动如骑车、跑步或者游泳的运动员的心脏容易大于常人的，因为他们需要更快的血液循环。
Athletes who train hard inaerobic(6)sports, such as cycling, running or swimming, tend to have a bigger heart that pumps more blood throughout the body.
如果你经常跑步或做循环锻炼或打网球，那么尝试一下可以在冬天做的新的运动，比如说游泳。
If you usually run or cycle or play tennis, try a new activity that can be done throughout the winter, such as swimming.
如果你经常跑步或做循环锻炼或打网球，那么尝试一下可以在冬天做的新的运动，比如说游泳。
If you usually run or cycle or play tennis, try a new activity that can be done throughout the winter, such as swimming.
应用推荐