The OSA frequency increase with age for the women. The mortality is higher for women.Some studies report that it is more frequent among the Hispanic and African American population than among the white population.If studied carefully in a sleep lab by polysomnography (formal "sleep study"), it is believed that approximately 1 in 5 American adults would have at least mild OSA. Research
Neurostimulation is currently being studied as a method of treatment; an implanted hypoglossal nerve stimulation system received European CE Mark (Conformité Européenne) approval in March 2012. Also being studied are exercises of the muscles around the mouth and throat through activities such as playing the didgeridoo. See also


== References ==
Clinical guideline, UK National Institute for Health and Clinical Excellence, June 2001. Josie L. Tenore: Methods for cervical ripening and induction of labor Archived 2008-05-16 at the Wayback Machine. American Family Physician, 15 May 2003. "Catecholamines – blood ." National Library of Medicine . N.p., n.d. Web. 28 Mar. 2011. <https://www.nlm.nih.gov/medlineplus>.