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Heightened emotion, stress, fever, physical exhaustion, or low blood sugar may trigger tremor and/or increase its severity. Tremor frequency (how “fast” the tremor shakes) may decrease as the person ages, but the severity may increase, affecting the person’s ability to perform certain tasks or activities of daily living. The action tremor in both hands in essential tremor can lead to problems with writing, drawing, drinking from a cup, or using tools or a computer. Additional symptoms may include head tremor (e.g., a “yes” or “no” motion) without abnormal posturing of the head and a shaking or quivering sound to the voice if the tremor affects the voice box. The key feature of essential tremor is a tremor in both hands and arms, which is present during action and when standing still. The tremor usually appears on both sides of the body, but is often noticed more in the dominant hand because it is an action tremor. For some people this tremor is mild and remains stable for many years. The exact cause of essential tremor is unknown. Some of the most common forms of tremor include:Įssential tremor (previously also called benign essential tremor or familial tremor) is one of the most common movement disorders. Tremor is most commonly classified by its appearance and cause or origin.
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Top What are the different categories or types of tremor?
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Tremor is an involuntary, rhythmic muscle contraction leading to shaking movements in one or more parts of the body. What are the different categories or types of tremor?