Biology, asked by 919526940556, 8 hours ago

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Answered by mastaarav
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Hey buddy
So the Parkinson’s disease is caused by loss of nervous cells in a sector of the brain, called substantia nigra. Due to the loss of the nervous cell, the chemical in the brain dopamine is reduced. If this chemical is reduced then the nervous reaction and body movements are effected and failed. The main reasons may be genetically and radioactivity or damage in spine/ brain. Some first common symptoms are : loss of smell, slow and unresponsive movements and muscles, stiff body, random shaking of body muscles and sleeping problems. Hope it helps
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