3. Pounding the Pavement
跑大街
Running, particularly on roads, has been blamed for wear and tear on the knees, which can lead to osteoarthritis. But a new study shows that those who run regularly are actually less likely to develop the condition than those who don't.
人们一直认为在大街上跑步对膝盖不好，会导致骨关节炎。但有一项新研究发现，那些定期跑步的人比不跑步的人患上骨关节炎的概率要更小一点。
Regular running can also reduce pain. A study at California's Stanford University found that older people engaging in regular exercise reported 25 percent less musculoskeletal pain than did sedentary people.
定期跑步还可以减少疼痛。斯坦福大学的研究发现，定期锻炼的老年人与那些久坐的人相比，肌骨骼疼痛的情况要少四分之一。