About 10 million people in the United States have essential tremor (ET), a movement disorder that causes uncontrollable shaking of the hands and often the head as well, and sometimes a quavering voice. ET is sometimes mistaken for Parkinson's disease.
There's no cure for ET, but clinicians have various ways to control the symptoms, including drugs and surgery. The American Academy of Neurology has issued updated treatment guidelines for essential tremor, deeming some medications ineffective and suggesting surgical procedures for severe cases.
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