Why does obstructive sleep apnoea cause snoring?

Muscles that help hold the tongue and throat open relax during sleep. If the airway becomes tight, airflow turns more turbulent and tissues such as the soft palate can flutter. Snoring may become louder or uneven as the space narrows. With obstructive sleep apnoea, airflow can pause before the brain briefly rouses the body and breathing resumes. Snoring is a very common presentation of Obstructive Sleep Apnoea, but snoring alone does not identify its cause.

Ask anyone who hears you sleep whether they notice pauses, gasping, choking or restless movements. Also note unrefreshing sleep, morning headache and sleepiness during quiet daytime activities. Take these observations to a clinician, who can assess your nose, mouth and throat, review medicines and decide whether a sleep study would be helpful. Avoid alcohol close to bedtime if it makes your snoring or breathing worse.

Book an appointment when snoring is frequent and accompanied by witnessed pauses in breathing, waking breathlessness or daytime drowsiness. Seek urgent help for chest pain, severe breathing difficulty, fainting or sudden confusion. Do not drive when you are struggling to stay awake, as reduced alertness can affect reaction time.

Ask whether the pattern suggests obstructive sleep apnoea, what test could assess nighttime breathing, and which treatment choices may suit your anatomy and health needs. Ask how to tell whether treatment is improving daytime alertness as well as snoring.