AA / Tunisia / Hend Abdessamad Retardation, stiffness, or tremor, two of these three signs are typical symptoms of Parkinson’s disease, and these motor symptoms are often referred to as the Parkinson’s triad. Parkinson’s disease, the second neurodegenerative disease after Alzheimer’s disease, is characterized by the destruction of dopamine neurons in the substantia nigra that … Read more
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