D. How to cut and paste content from a publicdisplay.
第三篇
A New Strategy to Overcome Breast Cancer
Post-menopausal(绝经后)womenwho walk for an hour a day can cut their chance of breast cancer significantly,a study has suggested. The report , which followed 73,000 women for 17 years, foundwalking for at least seven hours a week lowered the risk of the disease. TheAmerican Cancer Society team said this was the first time reduced risk wasspecifically linked to walking. UK experts said it was more evidence thatlifestyle influenced cancer risk.
A recent poll for the charity Ramblers aquarter of adults walk for no more than an hour a week, but being active isknown to reduce the risk of a number of cancers. This study, published inCancer Epidemiology, BiomarkersPrevention, followed 73.615 women out of97,785 aged 50-74 who had been recruited by the American Cancer Society between1992 and 1993,so it could monitor the incidence of cancer in the group.
They were asked to complete questionnaires ontheir health and on how much time they were active and participating inactivities such as walking, swimming and aerobics(有氧运动)andhow much time they spent sitting watching television or reading. They completedthe same questionnaires at two-year intervals between 1997 and 2009.Of thewomen,47% said walking was their only recreational acivity. Those who walkedfor at least seven hours per week had a 14% lower risk of breast cancercompared to those who walked three or fewer hours per week.
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