Search results
Results From The WOW.Com Content Network
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.
Rhythmic movement disorder (RMD) is a neurological disorder characterized by repetitive movements of large muscle groups immediately before and during sleep often involving the head and neck. It was independently described first in 1905 by Zappert as jactatio capitis nocturna and by Cruchet as rhythmie du sommeil . [ 1 ]
The muscle jerks consist of symmetric, mostly generalized jerks, localized in the arms and in the shoulders and also simultaneously with a head nod; both the arms may fling out together and simultaneously a head nod may occur. Symptoms have some variability amongst subjects. Sometimes the entire body may jerk, just like a startle response. As ...
If you fall asleep on one arm, this can reduce circulation or cause numbness. Sleeping on one side with the face pressed into a pillow can also cause temporary lines or marks in the skin .
Obdormition (/ ˌ ɒ b d ɔːr ˈ m ɪ ʃ ən /; from Latin obdormire "to fall asleep") is a medical term describing temporary numbness in a limb, often caused by constant pressure on nerves or lack of movement. [1] This is colloquially referred to as the limb "going to sleep" and is usually followed by paresthesia, colloquially called "pins ...
In some instances, people may worry about being able to fall asleep, which in turn can make it harder to sleep," says Alert. Medications: Certain medications can cause insomnia as a side effect.
People with PLMD often have excessive daytime sleepiness (EDS), falling asleep during the day, trouble falling asleep at night, and difficulty staying asleep throughout the night. Patients also display involuntary limb movements that occur at periodic intervals anywhere from 20 to 40 seconds apart.
There are three primary types of insomnia: sleep onset insomnia (difficulty falling asleep), sleep maintenance insomnia (difficulty staying asleep), and early waking, a subset of sleep maintenance ...