Apnea Posted February 12, 2016 by Robert Hooper The term applied to an absence of breathing for a period of 10 seconds or longer. Related Articles: Apnea – A Word with Many UsesCauses of Obstructive Sleep Apnea - The Who (Prevalence)The Causes of Obstructive Sleep Apnea - The How and WhyGlossary: eXciteOSAGlossary: Tongue exercises« Back to Glossary Index