Biologically, snoring refers to a vibration in the airway connecting the nose, and the mouth; a vibration that can emerge through the mouth, the nose or through both!
The answer to the question "Why do we snore?" is found by looking at the tissues within the airway. This tissue is very soft, and at night, becomes relaxed; it's similar to how some muscles, like biceps, become relaxed at night since the body does not require them.
As the throat relaxes during sleep, the wind tunnel becomes narrower, and hence, snoring occurs.
We often snore when we have a cold, because of blocked nasal airways. We would then breathe through our mouth causing negative pressure behind the uvula and soft palate, and this helps to create the sound of snoring.
Uvula is the small piece of soft tissue that dangles down from theft palate over the back of the tongue. Snoring can also be caused if the nose has any deformities in the nose.
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