All the healthy habits in the world won't help your overall fitness if you sit on the couch all day. To be a healthy man, get up and get active. But how much exercise is enough? Most major health organizations suggest at least 30 minutes of regular, moderate-intensity physical activity on most days to prevent cardiovascular diseases and to maintain fitness. This, of course, comes with the footnote that more exercise is always better。

　　2. 每周運(yùn)動3-4次

　　如果你成天窩在沙發(fā)里頭，神都救不了你。人要活，就要動。可是多少運(yùn)動才夠呢？每天30分鐘中等強(qiáng)度的運(yùn)動是最能防止疾病和保持身材的。

來源:可可英語 http://www.ccdyzl.cn/read/201012/120771.shtml