Parkinson's disease which is sometimes called Parkinson disease, Parkinson’s or PD is a movement disorder where the dopamine-producing neurons in the substantia of the brain undergo degeneration, Parkinson's is one of the most common neurological disorders it's a progressive adult-onset disease and it gets more common with age most of the time there's no known cause but in a few cases there might be a genetic cause like mutations in the pink1 parkin or alpha-synuclein genes and in rare cases, Parkinsonian symptoms might be caused by MPTP a toxic impurity that can be found in the recreational drug MPP or desmethylprotein which is a synthetic opioid.
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