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Actress Katharine Hepburn (1907–2003) had an essential tremor, possibly inherited from her grandfather, [93] that caused her head—and sometimes her hands—to shake. [ 94 ] [ 95 ] [ 96 ] The tremor was noticeable by the time of her performance in the 1979 film The Corn Is Green , when critics mentioned the "palsy that kept her head ...
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.
In occupational safety and health, hand arm vibrations (HAVs) are a specific type of occupational hazard which can lead to hand–arm vibration syndrome (HAVS). HAVS, also known as vibration white finger ( VWF ) or dead finger , [ 1 ] is a secondary form of Raynaud's syndrome , an industrial injury triggered by continuous use of vibrating hand ...
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Cadaveric spasm is seen in cases of drowning victims when grass, weeds, roots or other materials are clutched, and provides evidence of life at the time of entry into the water. Cadaveric spasm often crystallizes the last activity one did before death and is therefore significant in forensic investigations, e.g. holding onto a knife tightly. [4]
Related: Teen Becomes Temporarily Paralyzed After 2 Insect Bites: 'Something Was Very Wrong' As Owen explained: “It [used to] take me 30 minutes to get dressed. Now it takes 12. [I used to ...
If you or someone you know needs help, call 1-800-273-8255 for the National Suicide Prevention Lifeline. You can also text HOME to 741-741 for free, 24-hour support from the Crisis Text Line. Outside of the U.S., please visit the International Association for Suicide Prevention for a database of resources.
In sports, hand grip strength is a major factor in a player's strength, determining how easily a ball can be caught or how effectively equipment can be used. Hand grip strength is directly linked to hand-eye coordination: when a person is looking at the thing they are gripping, hand grip strength intensifies because of this synchronization. [13]