Essential tremor is the most common neurologic disorder that causes postural or action tremor. There is no known way to prevent hemifacial spasm. The symptoms of essential tremor usually worsen with age. Physiologic tremor occurs in all healthy individuals. These figures may underestimate the actual prevalence, however, because up to 50 percent of persons with mild essential tremor are unaware of it 6. Medication, surgery, and Botox injections are treatment options to stop the spasms and relieve the discomfort. The facial muscles are controlled by the facial nerve seventh VII cranial nervewhich originates at the brainstem and exits the skull below the ear where it separates into five main branches Fig.
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10 Important Causes of Tremor – Shaky Hands and Other Types of Tremor Explained
What research is being done? Whilst side effects occur, these are never permanent. Other researchers are using functional magnetic resonance imaging technology to better understand normal and diseased brain circuit functions and associated motor behaviors. Facial spasms occur when the muscles contract involuntarily because of this nerve irritation. Standing upright for only a short period may be difficult.