经常锻炼可以增强心脏机能，从而减少心脏病发作的危险。
Regular exercise strengthens the heart, thereby reducing the risk of heart attack.
加州大学欧文分校的神经学家卡尔·科特曼表示，每天保持一定的体育锻炼可以促进心理机能。
Maintaining a level of daily physical activity may help mental functioning, says Carl Cotman, a neuroscientist at the University of California at Irvine.
为了减掉一磅，你得通过锻炼或生活机能消耗，大概3600卡里路。
To lose a pound, you have to burn, through exercise or life functions, about 3600 calories.
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