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: Robert G. Hooper MD PublicationsWhat is the AHI (Apnea Hypopnea Index)Hypoglossal Nerve StimulatorGlossary: Mandibular Advancement Device (MAD)Getting Started« Back to Glossary Index