Snoring and Sleep Apnea

Simple snoring is the noise produced by the air going through the floppy tissue at the back of the nose. It is very common (>30% of the general population) and mostly only a social concern.

Obstructive sleep apnea occurs when the airway at the back of the throat are so floppy that collapse or almost collapse and the breathing is reduced (hypopnea) or stops completely (apnea).

Central sleep apnea is a more rare condition (less than 5% of the patients with sleep apnea)) usually seen in patients with heart failure or previous stroke. Incentral sleep apnea the muscles which drive our breathing (mostly the diaphragm) do not receive the correct information from the brain and the person stops breathing.

Over the last 50 years there have been many names used to describe
sleep apnea and its variants. For more precise definition of terms please see Terms used in Snoring and Sleep Apnea.

For more information download this Snoring and Sleep Apnea document.