https://www.123articleonline.com/rss/author/281058/jcs-instituteArticles written by JCS Institute from 123ArticleOnline.comen-usCopyright (c) 123ArticleOnline.com All rights reserved. https://www.123articleonline.com/articles/1185336/what-is-obstructive-sleep-apnea What is Obstructive Sleep Apnea or Sleep Apnea? Obstructive Sleep Apnea (OSA) is a common condition, in which the upper airway repeatedly collapses during sleep. If left untreated, this condition has been associated with an increased risk of high blood pressure, heart attack, depression, uncontrolled diabetes, and stoke.