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Brain & Nervous System Health Center

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Don't Be Embarrassed by Essential Tremors

WebMD Health News

June 6, 2001 -- What do patriot Samuel Adams, playwright Eugene O'Neill, and actress Katharine Hepburn have in common?

They all suffered from essential tremor, or shaking of the hands, head, voice, and body, especially when active or anxious. Despite this handicap, which tends to worsen with aging, they all continued to accomplish great things as they grew older.

"Essential tremor is a very common condition," Franklin Schneier, MD, associate director of the Anxiety Disorders Clinic of New York State Psychiatric Institute in New York, tells WebMD. It affects three to four million Americans, or up to one in five of those over age 65. Because it is inherited, about half of children born to a parent with essential tremor eventually develop it, usually starting in their 30s.

"One of the most common misconceptions about essential tremor is that it is a 'benign' condition," Joseph Jankovic, MD, tells WebMD. "While in most cases essential tremor does not interfere with social or occupational functioning, this familial disorder is often quite disabling."

"Besides the physical disability that interferes with writing, feeding, dressing, and other activities of daily living, essential tremor often is a cause of embarrassment, [which] is difficult to quantitate," says Jankovic, a professor of neurology and director of the Parkinson's Disease Center and Movement Disorders Clinic at Baylor College of Medicine in Houston.

Unlike the tremor of Parkinson's disease, the shaking in essential tremor gets worse with anxiety and with simple activities like writing, eating, drinking a cup of coffee or dialing a phone. Shaking in public makes the person embarrassed, which in turn aggravates the tremor, creating a vicious circle.

"As a result, people affected with essential tremor often avoid eating out, attending parties, and participating in other social functions," Jankovic says.

Social phobia, or fear of public situations, affects up to one-third of patients with essential tremor, according to Schneier's study reported in the May issue of Journal of Clinical Psychiatry. This study compared 94 patients with essential tremor, followed in a movement disorder clinic, with 85 people without essential tremor, who were living in the community.

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