Snoring is a symptom that occurs during sleep: the back of the throat is narrowed. When the sleeper breathes, a certain amount of air enters, but because it passes through a narrower area, the surrounding mucous membranes vibrate, creating a sound that people call snoring.

Statistics show that snoring is common, but the severity and impact on health varies from person to person. Occasional light snoring is not a cause for concern, but heavy snoring along with other symptoms can signal a serious sleep-related breathing disorder.