The basics
Snoring, obstructive sleep apnoea and your airway
When you fall asleep, the muscles in your throat relax. In some people the tongue and soft palate drop back far enough to narrow the airway, and the tissue vibrates as air squeezes past. That vibration is snoring.
In obstructive sleep apnoea, the airway narrows so much that breathing slows or stops for a few seconds at a time, often many times an hour. Each pause briefly lowers oxygen levels and jolts the brain out of deep sleep, usually without you knowing. Over months and years, untreated sleep apnoea is linked with high blood pressure, heart problems, type 2 diabetes and a higher risk of accidents from daytime tiredness.
There are other, less common forms, such as central sleep apnoea, where the brain does not send the signal to breathe. An oral appliance only helps with the obstructive kind, which is another reason a proper diagnosis comes first.









