Conditions · FAQ
What is obstructive sleep apnea (OSA), and why does it matter?
Short answer
Obstructive sleep apnea is a condition in which your upper airway repeatedly narrows or closes during sleep. This causes breathing pauses and broken sleep. It can also lower oxygen levels. Without treatment, OSA is linked to problems such as high blood pressure, heart disease, and accidents caused by sleepiness.
Obstructive sleep apnea, or OSA, happens when the upper airway becomes partly or fully blocked during sleep. The muscles around the throat relax, and nearby tissue can limit airflow. Your brain briefly wakes you enough to reopen the airway. These awakenings may happen without you knowing it.
Common signs include loud snoring, gasping, and breathing pauses noticed by someone else. You may wake with a dry mouth or headache. During the day, you may feel sleepy, have trouble focusing, or feel irritable. Not everyone with OSA snores or feels very tired.
OSA matters because repeated breathing problems can strain the body. Untreated OSA is linked to high blood pressure, heart problems, and a higher risk of crashes from drowsy driving. A sleep test is used to diagnose it and measure its severity.
Treatment depends on your test results, symptoms, and health history. A licensed physician in your state decides which medical treatment is appropriate. Results vary.
Sources
Written by the Verra clinical team · Medical review pending
General information, not medical advice. If you're in crisis, call or text 988.