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Obstructive sleep apnea: Blocked upper airway

Blocked or narrowed airways in your nose, mouth, or throat can cause sleep apnea. Your airway can become blocked when your throat muscles and tongue relax during sleep.

Primary Medical Reviewer William M. Green, MD
- Emergency Medicine
Specialist Medical Reviewer Lisa S. Weinstock, MD
- Psychiatry
Last Updated January 12, 2007

WebMD Medical Reference from Healthwise

Last Updated: January 12, 2007
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