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Essential tremor; Other names: Idiopathic tremor: Archimedean spiral drawings by a man with a unilateral essential tremor. The spiral on the left was drawn by the subject using the left hand, and the one on the right using the right hand. Specialty: Neurology: Usual onset: Any age, but typically after 40: Causes: Unknown: Risk factors
A tremor is an involuntary, [1] somewhat rhythmic muscle contraction and relaxation involving oscillations or twitching movements of one or more body parts. It is the most common of all involuntary movements and can affect the hands, arms, eyes, face, head, vocal folds, trunk, and legs. Most tremors occur in the hands.
A joy buzzer (also called a hand buzzer) is a practical joke device that consists of a coiled mainspring inside a disc worn in the palm of the hand. When the wearer shakes hands with another person, a button on the disc releases the spring, which rapidly unwinds creating a vibration that mimics an electric shock to the unsuspecting victim.
Hand warts are an easily contractible skin condition that can be passed at even the most mundane of moments, from shaking someone’s hand to sharing towels at the pool.. Warts on hands are caused ...
Tremors of this disease occur at frequencies of 2–4 Hz or more. [8] Intention tremor is also known to be associated with infections, such as West Nile virus, rubella, H. influenza, rabies, and varicella. [1] [9] A variety of poisons have been shown to cause intention tremor, including mercury, methyl bromide, and phosphine.
Dyskinesia can be anything from a slight tremor of the hands to an uncontrollable movement of the upper body or lower extremities. Discoordination can also occur internally especially with the respiratory muscles and it often goes unrecognized. [3] Dyskinesia is a symptom of several medical disorders that are distinguished by their underlying ...