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2. Familial natural short sleep - Wikipedia

   en.wikipedia.org/wiki/Familial_natural_short_sleep

   Genetic mutation. Prevention. none. Familial natural short sleep is a rare, genetic, typically inherited trait where an individual sleeps for fewer hours than average without suffering from daytime sleepiness or other consequences of sleep deprivation. This process is entirely natural in this kind of individual, and it is caused by certain ...

3. Upper airway resistance syndrome - Wikipedia

   en.wikipedia.org/wiki/Upper_Airway_Resistance...

   Upper airway resistance syndrome (UARS) is a sleep disorder characterized by the narrowing of the airway that can cause disruptions to sleep. [1][2] The symptoms include unrefreshing sleep, fatigue, sleepiness, chronic insomnia, and difficulty concentrating. UARS can be diagnosed by polysomnograms capable of detecting Respiratory Effort-related ...

4. Central hypoventilation syndrome - Wikipedia

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

   Central hypoventilation syndrome. 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. The condition can be fatal if untreated.

5. Obstructive sleep apnea - Wikipedia

   en.wikipedia.org/wiki/Obstructive_sleep_apnea

   Obstructive sleep apnea (OSA) is the most common sleep-related breathing disorder and is characterized by recurrent episodes of complete or partial obstruction of the upper airway leading to reduced or absent breathing during sleep. These episodes are termed "apneas" with complete or near-complete cessation of breathing, or "hypopneas" when the ...

6. 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] PND, as well as simple orthopnea, may be relieved by sitting upright at the side of the bed with legs dangling ...

7. Hypopnea - Wikipedia

   en.wikipedia.org/wiki/Hypopnea

   Hypopnea is typically defined by a decreased amount of air movement into the lungs and can cause hypoxemia (low levels of oxygen in the blood.) It commonly is due to partial obstruction of the upper airway, but can also have neurological origins in central sleep apnea. (Or if a person has sleep apnea caused by both causes, it is variously ...