It takes about 9 hours of rapid walking to burn the equivalent of one pound of body fat , so exercise alone is not an efficient method of losing fat 大约9个小时的快速行走能消耗掉一磅的脂肪，所以仅仅做运动并不是一个非常有效的减肥办法。
Rheumatoid arthritis affects about 2 million americans and represents a rapidly growing market that could reach more than $ 11 billion by 2014 , according to market research company research and markets 根据市场研究公司的研究，现在有200万美国人患类风湿关节炎，并有快速攀升的趋势，到2014年能消耗110亿美元。
Regular physical activity will not only slow down the narrowing of the arteries to the heart and brain , it will also encourage the body to use up excess stored fat , thereby improving cholesterol levels , maintaining glucose levels and reducing high blood pressure 规律的体力活动不仅延缓心脏和大脑血管狭窄的发生，还能消耗多余的脂肪，从而改善胆固醇水平保持血糖正常降低高血压。
