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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.
Tremor can be caused by diseases like multiple sclerosis, stroke, and neurodegenerative problems like Parkinsonâs disease . It can also be caused by drugs like alcohol, amphetamine, and steroids. Problems that affect the entire body, such as thyroid disease or liver failure, can cause tremor as well.