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Parkinson's disease

Parkinson's disease (PD), or simply Parkinson's, is a neurodegenerative disease primarily of the central nervous system, affecting both motor and non-motor systems. The motor symptoms, collectively called parkinsonism, include tremors, slowness in initiating movement (bradykinesia), rigidity, and difficulty maintaining balance. Non-motor symptoms may appear at any stage of the disease, including autonomic nervous system failures (dysautonomia), sleep abnormalities, decreased ability to smell (anosmia), and behavioral changes or neuropsychiatric problems, such as cognitive impairment, psychosis, and anxiety. Symptoms typically develop gradually, and non-motor issues become more prevalent as the disease progresses.

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