But when I told him it only happens once, as I'm falling asleep, he changed his tune. ... One is that hypnic jerks are a natural step in the body's transition from alertness to sleep. ... The disorder itself is like hypnic jerking gone loco. As the myoclonic jerker sleeps, his legs jump and twitch at terrifically precise...
www.discovery.com/area/skinnyon/skinnyon971114/skinnyon... www.discovery.com/area/skinnyon/skinnyon971114/skinnyon.html
Myoclonus - Wikipedia, the free encyclopedia
Myoclonus (pronounced /maɪˈɒklənəs/ ) 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 myoclo...
en.wikipedia.org/wiki/Myoclonus
hence the jerking legs or arms. ... Another theory put forward to try and explain the hypnic jerk is that the body reacts to falling asleep much in the way that a body may twitch when dying. ... I have these type of hypnic jerks at night while lying in bed before I go to sleep. The jerks can occur almost anywhere in the body.
www.wisegeek.com/what-is-a-hypnic-jerk.htm www.wisegeek.com/what-is-a-hypnic-jerk.htm
I have been having these episodes of insomnia due to body jerking while trying to fall asleep. This all started about 3wks ago when I found out my son had asthma. I was up everynight with him worrying. ... ; You are here: Experts > Health/Fitness > Cancer > Brain Tumors > Body jerking while falling asleep;
en.allexperts.com/q/Brain-Tumors-1000/Body-jerking-fall... en.allexperts.com/q/Brain-Tumors-1000/Body-jerking-falling-asleep.htm
Aug 19, 2006 ... What causes a single, violent, whole-body "twitch" while falling asleep? This happens to me frequently, but irregularly. After going to bed, ...
ask.metafilter.com/44599/What-causes-a-a-single-violent... ask.metafilter.com/44599/What-causes-a-a-single-violent-wholebody-twitch-while-falling-asleep
It refers to sudden, involuntary jerking of a muscle or group of muscles. ... Other familiar examples of myoclonus are the jerks or "sleep starts" that some people experience while drifting off to sleep. These simple forms of In some cases, myoclonus begins in one region of the body and spreads to muscles in other areas.
www.ninds.nih.gov/disorders/myoclonus/detail_myoclonus.... www.ninds.nih.gov/disorders/myoclonus/detail_myoclonus.htm
It's 4am CST here in Dallas, Tx. My body is starting to hurt from lack of sleep, ... The patients usually describe it as an electric shock or a falling sensation while on bed. The occurrence is reported by most people, especially when exhausted or ... Sometimes whilst asleep I have a feeling I have just mis...[more]
www.medhelp.org/posts/Neurology/full-body-jerks-while-f... www.medhelp.org/posts/Neurology/full-body-jerks-while-falling-asleep-and-leg-pain/show/627374
Jerks such as those you describe are known as myoclonus, and are very commonly brought on by fatigue, drowsiness, and just before falling asleep and just after awakening. When these occur in a young ... ; Re: body spasms ... called PLMS; however, he stated that the jerking while I am awake is abnormal for most sleep disorders...
www.medhelp.org/posts/Neurology/body-spasms-jerking/sho... www.medhelp.org/posts/Neurology/body-spasms-jerking/show/894169
This term denotes a common experience with sudden contractions of the big body muscles while falling asleep. This mostly causes a feeling of stumbling, falling or similar and subsequently waking up again. The exact cause is not known, it probably is some disturbance in the brain's functions in the first stage of sleep.
www.faqs.org/faqs/dreams-faq/part2/section-5.html
KidsHealth> Kids> Kids' Talk> Q & A> Why Does My Body Jerk Before I Fall Asleep? ... You're just about to drift off into a deep sleep when suddenly you feel like you're falling or rolling downhill on a roller coaster. Then your body jerks suddenly and you're awake. Weird! What's going on?
kidshealth.org/kid/talk/qa/jerk.html kidshealth.org/kid/talk/qa/jerk.html