What is Obstructive Sleep Apnea (OSA)?
Obstructive sleep apnea is a medical condition and sleeping disorder where you repeatedly stop breathing throughout the night, anywhere from 5 times per hour up to 30+ times per hour. Each time you stop breathing you wake up to begin breathing again, though in the morning you will not remember this.
Your throat becomes blocked because your breathing muscles in the back of your throat relax, causing the back of your throat to collapse fully or partially, blocking your airways. Each blockage/arousal cycle is called an apnea or apnea event.