What Obstructive Sleep Apnea Is Obstructive Sleep Apnea (OSA) occurs when the muscles of the throat and tongue relax during sleep and block the airway, creating pauses in breathing. These pauses trigger a stress response in the nervous system, drop blood oxygen levels, increase blood pressure, and fragment sleep. Many adults don’t realize they have … Continue reading 3 Telltale Symptoms of Obstructive Sleep Apnea (OSA)