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Coffee NPR's Joanne Silberner reports on a new study out today suggesting that caffeine reduces the risk of getting Parkinson's disease. In its most severe forms, the disease makes it difficult to talk and walk normally. Researchers are not certain why caffeine may be related to Parkinson's.

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NPR's Joanne Silberner reports on a new study out today suggesting that caffeine reduces the risk of getting Parkinson's disease. In its most severe forms, the disease makes it difficult to talk and walk normally. Researchers are not certain why caffeine may be related to Parkinson's.