Sleep apnea is a common health condition that occurs when a person stops breathing while asleep. This can happen as many as 400 times a night. Snoring can be a symptom of obstructive sleep apnea, or OSA, the most common form of the condition.
Sleep apnea can cause problems when you’re awake. The inability to sleep soundly without interruption can make you drowsy and fatigued. Someone with sleep apnea may find their cognitive functioning during the day to be diminished.
Truck drivers with untreated sleep apnea may be driving impaired, causing highway accidents and collisions. See U.S. Department of Transportation, https://www.fmcsa.dot.gov/driver-safety/sleep-apnea/driving-when-you-have-sleep-apnea.