How does a person develop a snore?

Tongue can fall back: The sound we call snoring occurs due to air passing through a narrowing of the airway, causing the tissue to "flutter" and make noise. Narrowing can occur as a result of several things....Large tonsils, excess neck fat, loss of muscle tone, and most commonly, a tongue that falls back blocking the airway during deep sleep. People who snore loudly may also have sleep apnea. Have your md check this.

Constrictions: Snoring is the result of a constriction of the airway either in the throat or in the nasal cavity. This can be the result of injury, foreign bodies, malformations, developmental constrictions, and lack of muscular tone in the neck or being overweight. For many people, it is a preliminary indication of sleep apnea.