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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.
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.
We tapped two health care providers who treat older adults for more information. Meet the experts: Shannel Kassis Elhelou, PsyD, is a geropsychology and neuropsychology fellow at the Pacific ...
There's also no such thing as "normal" when it comes to how often you jerk off. According to a 2023 survey published in Springer Nature , 35.9% of men reported masturbating at least once a week ...
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1) Touch your taint. If you haven’t already been introduced, meet your taint—or your perineum, if we’re getting technical.It’s the strip of skin between your balls and your butt, and it ...
YouTube Music is a music streaming service developed by the American video platform YouTube, a subsidiary of Alphabet's Google. The service is designed with a user interface that allows users to explore songs and music videos on YouTube -based genres, playlists, and recommendations.