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  3. Moderate drinking reduces stroke risk, study confirms. Similar to the way a

Moderate drinking reduces stroke risk, study confirms. Similar to the way a

游客2023-11-09  41
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 consumption wards off strokes, a new study found.
    The study also found that the type of alcohol consumed—beer, wine or liquor— was unimportant. Any of them, or a combination, was protective, researchers reported in the Journal of the American Medical Association recently. "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 support 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 attacks is well established, but the data has been conflicting about alcohol and strokes, the authors said. The new study helps settle the question and is the first to find blacks and Hispanics benefit as well as whites, according to the authors. Further research is needed among other groups, such as Asians, whose past studies suggest they may get no stroke protection from alcohol or may even be put at great 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 levels 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 accumulate, which is key in forming the blood clots that can cause strokes.
    The researchers studied 677 New York residents who lived in the northern part of Manhattan and had strokes between July 1, 1993 and July 1, 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 nondrinkers. 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. [br] The principle of protecting oneself from strokes by consuming alcohol reasonably cannot be applied to
选项 A、heavy drinkers.
B、light drinkers.
C、mild drinkers.
D、non-drinkers.
答案 D
解析 答案依据在第2段第3句。第1段和第2段表明喝酒的人应有节制，但不喝酒的人也无需开始喝酒，可见，“喝酒要有节制”这个原则只适用于有喝酒习惯的人身上(不管他们喝酒的习惯如何，不管他们是heavy drinkers，还是mild drinkers)，相反来说，这个原则与从来不喝酒的人无关，据此，本题应选D。
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