Why do people snore ? this question does not have one single answer because there are several causes of snoring.
What happens when people snore is that the loose tissue at the back of the throat vibrates and produces sounds when the flow of air coming in passes rubbing against it. This happens whenever we breathe in. It should be noted that these vibrations are intensified when your body is not in the right position because the throat gets narrower. This usually obstructs the incoming stream of air.
Snoring occurs when people breathe using their mouths. However, if you breathe using your nose, the air stream flows in without passing by this loose tissue, thus causing no snoring at all.
In a number of cases, the tissue at the back of the mouth is swollen or inflammed due to smoking, allergies or some other reason. In this situation, the only way you can get rid of snoring is by trying to cure and treat these inflammations and swellings.
These are just a few answers to the question ‘why do people snore ?’ there could be other snoring causes that I overlooked. Anyway, this is the basic thing that happens when people snore.