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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 word hypnagogia is sometimes used in a restricted sense to refer to the onset of sleep, and contrasted with hypnopompia, Frederic Myers's term for waking up. [2] However, hypnagogia is also regularly employed in a more general sense that covers both falling asleep and waking up.
Sleep paralysis is a state, during waking up or falling asleep, in which a person is conscious but in a complete state of full-body paralysis. [1] [2] During an episode, the person may hallucinate (hear, feel, or see things that are not there), which often results in fear.
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.
Whether it's the nightly news or an old Friends episode they've seen 40 times, many people say they are lulled to sleep by the television. In fact, some can’t imagine falling asleep without it ...
It is a phenomenon in which the sleeper feels the presence of a supernatural, malevolent being which immobilizes the person as if sitting on their chest or the foot of their bed. The word "night-mare" or "nightmare" was used to describe this phenomenon before the word received its modern, more general meaning. [1]
By: Djenane Beaulieu, Buzz60. There's a common belief that talking in your sleep reveals your deepest darkest secrets and your true self and that there may be a deep-rooted psychological incentive ...
However, it doesn't have any clinical significance without deeper investigation. Children living an episode of confusional arousal typically sit up in bed, whimper, cry, moan, and may utter words like “no” or “go away”. They remain distressed and inconsolable despite all parental efforts.