`hypnic-jerks` Related Article Results

Hypnic jerks (also known as hypnic myoclonus, hypnagogic jerk, or sleep-start) is a physiological phenomenon characterized by sudden, involuntary, and brief contractions of one or more muscles at the onset of sleep. These contractions are often accompanied by a sudden sensation of “falling,” “being pulled into emptiness,” or a “startle” as the individual begins to drift into sleep. Hypnic jerks typically occur during the transition to the first stage of non-rapid eye movement (NREM) sleep. They