Sleep apnea is when you involuntarily stop breathing while you’re sleeping. When you’re asleep, your tongue and throat sometimes relax and fall, which obstructs your regular breathing for a few seconds. That happens over and over all night long, and the result is, your sleep is disrupted and you’re often chronically exhausted.
Obstructive sleep apnea is more common than most people think. About one in every five adults have at some form of obstructive sleep apnea. Though sleep apnea is treatable, most people don’t know they have it.