Detailed Notes On What Is Sleep Apnea What is Sleep Apnea? Sleep apnea, mainly obstructive sleep apnea (OSA), happens when your airway blocks during sleep. This blockage can happen sometimes a night. It disrupts your sleep and cuts off oxygen to your body. The National Institute of Health states 1 https://what-is-deviated-septum06272.full-design.com/best-guidelines-of-what-is-sleep-apnea-73368598