Alcoholism runs in families. Even before researchers showed how and why some people are predisposed to becoming alcoholic, simple observation showed that when one or both parents are alcoholic, the children are at risk. Until recently, researchers couldn't be sure whether this familial link was hereditary or environmental or both. Do people drink because they "leaned to" at home or do they drink because they are genetically programmed to become alcoholic? While the environmental influence …showed first 75 words of 5997 total…

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