Obstructive sleep apnea (OSA), the most common type of sleep apnea, can be a serious sleep disorder, as breathing repeatedly stops and starts during sleep. Caused by throat muscles intermittently relaxing and blocking the airway, it can impair a patient's ability to reach desired deep and restful phases of sleep.
Obstructive sleep apnea (OSA), the intermittent cessation of breathing during sleep, occurs when the upper airway tissues (e.g., tonsils, fatty tissue) repeatedly collapse into the upper airway and partially or fully block airflow. The collapsibility of the upper airway in people with OSA is believed to occur because the upper airway muscles relax excessively during sleep, which allows structures supported by the muscles to collapse into the upper airway.
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