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Many people associate shaky hands with Parkinsonâs disease, but the most common cause of shaking hands is actually essential tremor. Essential tremor is the most common neurologic disorder affecting adults, but itâs not well understood.
Tremors are usually the product of problems in the part of the brain that control body muscles or particular areas such as the hands. The causes of tremors include neurological disorders or conditions such as multiple sclerosis, stroke, traumatic brain injury and neurodegenerative disorders that destroy parts of the brainstem or cerebellum.