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  2. Catathrenia - Wikipedia

    en.wikipedia.org/wiki/Catathrenia

    Catathrenia begins with a deep inspiration. The person with catathrenia holds his or her breath against a closed glottis, similar to the Valsalva maneuver. Expiration can be slow and accompanied by sound caused by vibration of the vocal cords or a simple rapid exhalation. Despite a slower breathing rate, no oxygen desaturation usually occurs.

  3. Sleep paralysis - Wikipedia

    en.wikipedia.org/wiki/Sleep_paralysis

    Going to bed before the usual hour is a frequent cause of night-mare, as it either occasions the patient to sleep too long or to lie long awake in the night. Passing a whole night or part of a night without rest likewise gives birth to the disease, as it occasions the patient, on the succeeding night, to sleep too soundly.

  4. 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.

  5. Paroxysmal nocturnal dyspnoea - Wikipedia

    en.wikipedia.org/wiki/Paroxysmal_nocturnal_dyspnoea

    Paroxysmal nocturnal dyspnea or paroxysmal nocturnal dyspnoea (PND) is an attack of severe shortness of breath and coughing that generally occurs at night. [1] It usually awakens the person from sleep, and may be quite frightening. [2]

  6. Hurting all over? Here are 10 Common Causes of Body ... - AOL

    www.aol.com/lifestyle/hurting-over-10-common...

    In a study published in Arthritis & Rheumatology, researchers found the number one predictor of widespread pain, especially among adults over 50, is non-restorative sleep, or disruptive sleep ...

  7. A 29-year-old man’s debilitating night terrors were the first sign of rare autoimmune disorder that rapidly progressed, landing him in the intensive care unit in a “catatonic state.” Ben ...

  8. Night hag - Wikipedia

    en.wikipedia.org/wiki/Night_hag

    The night hag or old hag is the name given to a supernatural creature, commonly associated with the phenomenon of sleep paralysis. 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.

  9. Central hypoventilation syndrome - Wikipedia

    en.wikipedia.org/wiki/Central_hypoventilation...

    Central hypoventilation syndrome (CHS) is a sleep-related breathing disorder that causes ineffective breathing, apnea, or respiratory arrest during sleep (and during wakefulness in severe cases). CHS can either be congenital (CCHS) or acquired (ACHS) later in life.