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Moderate drinking reduces stroke risk, study confirms. Similar to the way a drink or two a day protects against heart attacks, m
Moderate drinking reduces stroke risk, study confirms. Similar to the way a drink or two a day protects against heart attacks, m
admin
2015-01-31
37
问题
Moderate drinking reduces stroke risk, study confirms. Similar to the way a drink or two a day protects against heart attacks, moderate alcohol consumptions wards off strokes, a new study found.
The study also found that the type of alcohol consumes—beer, wine or liquor—was unimportant. Any of them, or a combination, was protective, researchers reported in today’s Journal of the American Medical Association. "No study has shown benefit in recommending alcohol consumption to those who do not drink", cautioned the authors, led by Dr. Ralph L. Sacco of Columbia University College of Physicians and Surgeons in New York. But the new data supports the guidelines of the National Stroke Association, which say moderate drinkers, may protect themselves from strokes by continuing to consume alcohol, the authors said.
The protective effect of moderate drinking against heart attack is well established, but the data has been conflicting with alcohol and strokes, the author said. The new study helps settle the question and is the first to find blacks and Hispanic benefit as well as whites, according to the authors. Further research is needed among other groups, such as Asian, who past studies suggest may get no stroke protection from alcohol or may even be put at greater risk.
Among groups where the protective effect exists, its mechanism appears to differ from the protective effect against heart attacks, which occurs through boosts in level of so-called "good" cholesterol, the authors said. They speculated alcohol may protect against stroke by acting on some other blood trait, such as the tendency of blood platelets to clump, which is key in forming the blood clots that can cause strokes.
The researchers studied 677 New York residents who live in the northern part of Manhattan and had strokes between July 1, 1993, and June 1997. After taking into account differences in other factors that could affect stroke risk, such as high blood pressure, the researchers estimated that subjects who consumed up to two alcoholic drinks daily were only half as likely to have suffered clot-type strokes as non-drinkers. Clot-type strokes account for 80 percent of all strokes, a leading cause of US deaths and disability. Stroke risk increased with heavier drinking. At seven drinks per day, risk was almost triple that of moderate drinkers.
Why did researchers find about the relationship between strokes and alcohol consumption before the new study?
选项
A、They agreed that alcohol consumption could cause strikes.
B、They could not find any data to support the relationship.
C、What they found was totally opposite to the new study.
D、Their findings were not consistent with another one’ s.
答案
D
解析
细节题。根据before the new study定位到第三段内容The protective effect of moderate drinking against heart attack is well established,but the data has beenconflicting with alcohol and strokes.the author said.“有节制地饮酒保护人们不患心脏病这种说法广为人们接受.但是有关饮酒和中风的数据则互相矛盾”。说明之前的研究没有确定饮酒和中风两者之间的关系。题干中的not consistent和原句conflicting互为对应点,所以选D。
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0
大学英语六级
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