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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.
Essential tremor, also known as benign essential tremor, is a brain disorder that causes a part of your body to shake uncontrollably. The unintentional shaking motion is called a tremor. The hands and forearms are the most commonly affected areas. In rare cases, tremors can occur in the legs and feet.