Obstructive sleep apnea occurs when throat muscles relax and block the airway

https://gunneruwnm239.theglensecret.com/obstructive-sleep-apnea-treatment-options-when-cpap-isn-t-enough

Obstructive sleep apnea occurs when throat muscles relax and block the airway, causing drops in oxygen and frequent awakenings you may not remember in the morning.