Coffee drinkers and other caffeine users face a significantly lower risk of developing Parkinson's disease, according to a study just published in The Journal of the American Medical Association. American researchers examined data from the Honolulu Heart Program, which involved 8,004 Japanese-American men and found that during 27 to 30 years of follow-up, 102 men developed Parkinson's disease. Among non-coffee drinkers, the risk of developing Parkinson's disease over this 30-year period was 5 times greater that of men who drank at least 28 ounces of coffee daily. In the 27-year follow-up group, the risk was 3 time greater in non-coffee drinkers. The risk of developing Parkinson's disease fell progressively as coffee consumption rose from 4 ounces daily to more than 24 ounces daily. The investigators found the same relationship regardless of the source of caffeine. While this study found a strong relationship between coffee drinkers and low rates of Parkinson's disease, the scientists have not identified why this is so.
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