Sleep Apnea Blog » breating at night http://sleepapneazone.org/blog Great Information on Sleep Apnea Sun, 16 May 2010 08:42:11 +0000 en hourly 1 http://wordpress.org/?v=3.3 Sleep Apnea http://sleepapneazone.org/blog/sleep-apnea-causes/sleep-apnea-9 http://sleepapneazone.org/blog/sleep-apnea-causes/sleep-apnea-9#comments Tue, 22 Dec 2009 14:36:04 +0000 admin http://sleepapneazone.org/blog/sleep-apnea-causes/sleep-apnea-9 Obstructive sleep apnea (OSA) is a condition in which a partial or complete obstruction of the upper airway is caused when the muscles of the upper airway relax during sleep. It causes the person with OSA to partially awaken from deep stages of sleep until the airway clears, often many times in one night.

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