2006/02/22 | [听写]Low-Fat Diets Alone Do Not Reduce Health Risks(1/3)
类别(昕昕的知识小屋) | 评论(0) | 阅读(11) | 发表于 22:47
An American study has examined the effects of low-fat diet on the health of women.The study found that such diet does not ruduce the risk of(*)at least one kind of cancer ,heart disease or stroke.
For years,medical expert has thought that diet that is low in fat helps ruduce the risk of cancer and heart disease.Researchers with America's national institutes of health created(create) the study to test this thoery .
It is one of the largest studies ever done on this subject.The researcher studied the health of almost 50(15) thousand women for 8 years.These women were between the ages of 14 and 79 years.
The women in one group reduced the fat in their diet to 20 percent of their total daily food supply.They also increaed their daily serving(servicing) of vegetables,friuts and grains.Another group of women did not make any dietary( diet *)changes.
The reseachers compared the two groups,the results of the study showed the different diet has little effect on the health of women.Both groups had the same rates( risk) of heart disease and colorectal (colo *)cancer.The researchers said the women who follow the low-fat diet might have the less risk of rice cancer ,but the difference was so small that it is not considered important.


new words:
stroke
n. 中风；击, 敲, 报时的钟声, (网球等)一击, (划船等)一划, (绘画等)一笔, 一次努力, 打击；笔锋；鼓动
vt. 抚摸
dietary adj. 饭食的
n. 规定的食物, 饮食之规定
colorectal cancer 结肠癌
breast cancer乳腺癌



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