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A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.
The disorder often leads to bodily injury from unwanted movements. Because of these incessant muscle contractions, patients' sleep patterns are often disrupted. It differs from restless legs syndrome in that RMD involves involuntary muscle contractions before and during sleep while restless legs syndrome is the urge to move before sleep. RMD ...
Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular. Myoclonus ( myo- "muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a disease .
Teacher, Driving Home From Work, Pulls Over To Save Choking 100-Year-old Woman With Heimlich Maneuver. Wrap your arms around their torso from the back. Make a fist with one hand and grab it with ...
A fasciculation, or muscle twitch, is a spontaneous, involuntary muscle contraction and relaxation, involving fine muscle fibers. [1] They are common, with as many as 70% of people experiencing them. [1]
“I grunt when I play tennis, and I have absolutely no control over it. And the interesting thing is that as my intensity increases, so does my grunting. I can tell you personally that if I don ...
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BBC News: Why we hiccup "Wired: The Best Cure for Hiccups: Remind Your Brain You're Not a Fish". Wired. 25 February 2008. Archived from the original on 22 July 2014. Cymet TC (June 2002). "Retrospective analysis of hiccups in patients at a community hospital from 1995–2000". J Natl Med Assoc. 94 (6): 480– 3. PMC 2594386. PMID 12078929 ...