锻炼有助于治疗癌症

Exercise improves survival, limits recurrence, and can be used with surgery and drugs BY LYDIA DENWORTH | ILLUSTRATION BY JAY BENDT TO IMPROVE THE QUALITY OF LIFE OF PEOPLE WITH CANCER, oncologists have regularly recommended exercise. Staying fit can make patients feel and function better. But exercise itself was never considered a formal treatment for the disease. “The thinking in the medical community was that you need biomedical interventions—surgery, radia- tion therapy, drugs—to treat cancer,” says Kerry Courneya, a professor of kinesiology at the University of Alberta who studies physical activity and cancer. That thinking is changing. Recently strong evi- dence emerged that exercise lengthens survival times and lowers recurrence risk for several cancer types. …