و ننتقل إلى الرابط التالى :
http://alcoholism.about.com/cs/basics/l/blnaa16.htm

و الرابط و إن كان لا يتبع جامعة معينة ولكن كل شئ فيه مكتوب بالمصدر و يمكن للقارئ الكريم أن يرجع للرابط إن أراد التحقق من المصادر
و يتحدث المقال عن أن الاستهلاك المتوسط للكحول له منافعه و مضاره و يصل فى النهاية إلى أن الاستهلاك المتوسط للكحول حرصا على منافعه الصحية هو مثار للتساؤل

ننقل من الرابط أضرار الاستهلاك المتوسط للكحول :

Risks of Moderate Drinking

There are risks that might offset the benefits of moderate drinking. Research shows that adverse consequences may occur at relatively low levels of consumption (1).

Stroke. A review of epidemiologic evidence concludes that moderate alcohol consumption increases the potential risk of strokes caused by bleeding, although it decreases the risk of strokes caused by blocked blood vessels (21).

Motor vehicle crashes. While there is some evidence to suggest that low blood alcohol concentrations (BACs) bear little relationship to road crashes, impairment of driving-related skills by alcohol has been found to begin at 0.05 percent BAC or lower, with rapidly progressing deterioration as the BAC rises (22). A man weighing 140 pounds might attain a BAC of 0.05 percent after two drinks.

Interactions with medications. Alcohol may interact harmfully with more than 100 medications, including some sold over the counter (23). The effects of alcohol are especially augmented by medications that depress the function of the central nervous system, such as sedatives, sleeping pills, anticonvulsants, antidepressants, antianxiety drugs, and certain painkillers. There is a consequent increased danger of driving an automobile after even moderate drinking if such medications are taken (24). In advanced heart failure, alcohol may not only worsen the disease, but also interfere with the function of medications to treat the disease (25).

Cancer. Although most evidence suggests an increased risk for certain cancers only among the heaviest drinkers, moderate drinking may be weakly related to female breast cancer. In one study (26), breast cancer was approximately 50 percent more likely to develop in women who consumed three to nine drinks per week than in women who drank fewer than three drinks per week. Although evidence concerning large bowel cancer is conflicting, one study suggests the possibility of a weak relation to consumption of one or more drinks per day (27).

Birth defects. Several ongoing studies are exploring the fetal risks associated with low levels of alcohol consumption. In one study (28), chil dren whose mothers reported consuming an average of two to three drinks per day during pregnancy were smaller in weight, length, and head circumference and had an increased number of minor physical anomalies when examined at intervals through the age of 3. In addition, mothers' self-reported consumption of as few as two drinks per day during pregnancy was found to be related to a decrease in IQ scores of 7-year-old children (29).

The question of whether moderate drinking is a risk factor for the fetus is not altogether settled, because mothers' self-reports of alcohol consumption may be underestimates (30). However, animal research provides additional evidence for adverse fetal effects from low levels of drinking. Nervous system abnormalities occurred in monkeys whose mothers were exposed weekly to low doses of alcohol. An effect occurred at a maternal BAC as low as 0.024 percent (31). A 120-pound woman might attain this BAC after one drink. Similarly, low prenatal alcohol doses produced biochemical and physiological changes in rat brains (32,33).

Shift to heavier drinking. Recovering alcoholics, as well as people whose families have alcohol problems, may not be able to maintain moderate drinking habits (2). Once a person progresses from moderate to heavier drinking, the risks of social problems (for example, drinking and driving, violence, trauma) and medical problems (for example, liver disease, pancreatitis, brain damage, reproductive failure, cancer) increase greatly (34).


و كما نرى فالأضرار التى يتعرض لها من يشربون الكحول بكميات متوسطة هى نزيف المخ و الحوادث المرورية كما أنه يؤثر على 100 دواء و يزيد العرضة لسرطان الثدى فضلا عن أن الإنسان قد ينتقل من الاستهلاك المتوسط إلى الشرب بكميات كبيرة