Tremor

Tremors are unintentional trembling or shaking movements in one or more parts of your body. Most tremors occur in the hands. You can also have arm, head, face, vocal cord, trunk and leg tremors. Tremors are most common in middle-aged and older people, but anyone can have them.

Tremors commonly occur in otherwise healthy people. Sometimes, however, nerve diseases such as Parkinson's disease or dystonia, an overactive thyroid, or certain medicines can cause them. Heavy drinking, because it kills certain nerve cells, can cause tremors, too. Some forms are inherited and run in families. Others have no known cause.

There is no cure for most tremors. Treatment to relieve them depends on their cause. In many cases, medicines and sometimes surgical procedures can reduce or stop tremors and improve muscle control. Tremors are not life threatening. However, they can be embarrassing and make it hard to perform daily tasks.

National Institute of Neurological Disorders and Stroke

Tremor on Wikipedia

'''Tremor''' is the rhythmic, oscillating shaking movement of the whole body or just a certain part of it, caused by problems of the neurons responsible from muscle action. Tremor may occur as an isolated symptom and usually of idiopathic (unknown) cause (essential tremor) or a part of the symptom constellation of another disorder (e.g. Parkinson's disease). Tremors may occur at rest (Parkinson's disease), during voluntary movements (cerebellar lesions) or during excessive activity of muscles (essential tremor, hyperthyroidism). Usually, tremors involve the hands, but they may also involve the head (anatomy), face, neck, voice and legs.

Types

There are several types of tremors. These include: * A '''rest tremor''' is a tremor that despite the limb being fully supported. It usually progresses at the rate of 4-7 Hz; (hertz; times per second), and is the typical Parkinsonian tremor, though it may also occur with an essential tremor. * A '''movement (action) tremor''' occurs when an individual tries to perform an action. * A '''postural tremor''' occurs when the hands are held outstretched.

Causes

Tremors may increase with anxiety and caffeine and cease during sleep. Amongst the diseases associated with tremors, essential tremor and Parkinson's disease are the best known. Tremors can also occur due to large equivalent dose of ionizing radiation.

Treatment

Medications are used only if tremor interferes with daily life activities. Some of the drugs that can be used are clonazepam, mysoline, primidone and propranolol.

Other tremors

Ocular tremors are eye tremors that are not problem tremors, but instead normal eye tremors believed to assist in vision. (Note: Larger eye movements called saccade are not tremors.) [ Read More ]

External Resources

Falcon Press - Publishes the zine A Tremor in the Force. Reviews the zine's contents. Ordering information.

Diabolical Dominion Interviews: S.S. Wilson - The writer and director talks about the 'Tremors' movies.

UK Tremors - A fan site with introduction, news, bloopers, a quiz, and quotes from the first two movies.

Official site: Tremors - Detailed information on all three movies, including trailers and downloads.

Unofficial But First Tremors Web Site - Fan site with images, quotes, mistakes, theories, and cast information.

Fan site: Tremors Russian - Russia-based site includes extensive information on the weapons seen in the movies.

Tremors Fan Site - Plot descriptions, cast biographies, multimedia, collectables, and forum.

Brandon's Tremors Site - Fan site with pictures.

Tremors - A brief fan page with plot summary, cast list, and a collection of sound clips from the movie.

Movie Quotes Site: Tremors - An index of quotes from the movie. Collected and submitted by users of the site.