It is claimed that the increased likelihood is due to the ability of methamphetamines to cause Parkinson's Disease, but no evidence has been provided of this. A previous study did not prove that methamphetamines had a clearly negative effect on dopamine. For more information go to the Complete abstract. In Parkinson's Disease, dopamine levels are low. This can not only cause the muscular symptoms characteristic of Parkinson's Disease, but can also incline somebody towards depression. So rather than methamphetamines causing Parkinson's Disease, the depression that can precede and be associated with Parkinson's Disease could make somebody more inclined to take  methamphetamines. For more current news go to Parkinson's Disease News.

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