In fact, obstructive sleep apnea (OSA), which is a type of sleep apnea, is marked by a blocked airway during sleep. These blockages happen when the tongue and soft mouth muscles in the throat relax too much, making the airway narrow or collapse. This causes breathing to stop and start over and over, often with sounds of snoring, gasping, or choking as the body tries to open the mouth ... https://www.medzsquare.com/au/modalert-200