单选题
Men who exercise often are less likely to die from cancer than those who
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, new research published in the British Journal of Cancer revealed yesterday.
A team of scientists from the Karolinska Institute in Sweden looked
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the effect of physical activity and cancer risk in 40,708 men aged
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45 and 79.
The seven-year study found that men
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walked or cycled for at least 30 minutes a day had a 34 percent lower
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of dying from cancer than the men who did less exercise or nothing at all.
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the period studied, 3,714 men developed cancer and 1,153 died from the disease. The researchers suggest that half an hour"s walking
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cycling a day increased survival among these men by 33 percent.
The researchers surveyed men from two counties in central Sweden about their lifestyle and the amount of
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activity they were usually doing. They then scored these responses and compared the results with data on cancer diagnosis and death officially recorded in a central cancer registry (登记簿) over a seven-year
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. Lead author, Professor Alicja Wolk, said: "These results clearly show for the first time the effect that very simple and basic daily
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such as walking or cycling has in reducing cancer death risk in middle-aged and elderly men."