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  2. Hypnic jerk - Wikipedia

    en.wikipedia.org/wiki/Hypnic_jerk

    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.

  3. Reflex syncope - Wikipedia

    en.wikipedia.org/wiki/Reflex_syncope

    Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy ...

  4. Rhythmic movement disorder - Wikipedia

    en.wikipedia.org/wiki/Rhythmic_movement_disorder

    The disorder often leads to bodily injury from unwanted movements. Because of these incessant muscle contractions, patients' sleep patterns are often disrupted. It differs from restless legs syndrome in that RMD involves involuntary muscle contractions before and during sleep while restless legs syndrome is the urge to move before sleep. RMD ...

  5. Psychomotor agitation - Wikipedia

    en.wikipedia.org/wiki/Psychomotor_agitation

    Psychomotor agitation is a symptom in various disorders and health conditions. It is characterized by unintentional and purposeless motions and restlessness, often but not always accompanied by emotional distress and is always an indicative for admission.

  6. Laryngospasm - Wikipedia

    en.wikipedia.org/wiki/Laryngospasm

    Laryngospasm is an uncontrolled or involuntary muscular contraction of the vocal folds. [1] It may be triggered when the vocal cords or the area of the trachea below the vocal folds detects the entry of water, mucus, blood, or other substance. It may be associated with stridor or retractions.

  7. Why tennis players grunt during matches - AOL

    www.aol.com/why-tennis-players-grunt-during...

    I grunt when I play tennis, and I have absolutely no control over it. And the interesting thing is that as my intensity increases, so does my grunting. I can tell you personally that if I don ...

  8. Terminal lucidity - Wikipedia

    en.wikipedia.org/wiki/Terminal_lucidity

    Terminal lucidity (also known as rallying, terminal rally, the rally, end-of-life-experience, energy surge, the surge, or pre-mortem surge) [1] is an unexpected return of consciousness, mental clarity or memory shortly before death in individuals with severe psychiatric or neurological disorders.

  9. Do you suddenly have really bad B.O.? Here's what might be ...

    www.aol.com/lifestyle/suddenly-really-bad-b-o...

    Here are some potential causes for why you suddenly stink. Body odor can be caused by several things, from diet to stress. ... For premium support please call: 800-290-4726 more ways to reach us ...