Why is obesity a risk factor for obstructive sleep apnea (OSA)?

Updated: Sep 15, 2020
  • Author: Himanshu Wickramasinghe, MD, MBBS; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Given these principles, it is understandable why the likelihood of OSA is increased among obese patients, why weight loss decreases the risk of OSA, and why physical examination helps in predicting the presence of OSA. However, the clinical situation is complex because of the interplay of known static and dynamic factors and because of unknown factors.

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