• Myoclonus (pronounced /maɪˈɒklÉ™nÉ™s/) is brief, involuntary twitching of a muscle or a group of muscles. It describes a medical sign and, generally, is not a diagnosis of a disease. The myoclonic twitches are usually caused by sudden muscle contractions; they also can result from brief lapses of contraction. Contractions are called positive myoclonus; relaxations are called negative myoclonus. The most common time for people to encounter them is while falling asleep (hypnic jerk), but myoclonic jerks are also a sign of a number of neurological disorders. Hiccups are also a kind of myoclonic jerk specifically affecting the diaphragm. Also when a spasm is caused by another person it is known as a "provoked spasm".
  • do you know that you twitch?.....i wouldnt know because im usually asleep... :) lol krysteelynn:)
  • you say "we",you got a mouse in your pocket.?
  • I think its because our tired bodies are going into a relaxing stage
  • When you say "we" I assume you mean "you". and, maybe you have strange dreams, sleep paralysis, too much caffeine throughout the day, maybe a drug withdrawal, i dunno.
  • Because the 'muscular cutof' that activates when we fall asleep is not quite perfect. Parts of the motions we make in out dreams go through.

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