Alcohol, smoking and sedatives helps to relax the muscles in the throat and interfere with breathing. Avoid alcohol before going to bed. Alcohol causes the muscles to relax more than usual during a normal night’s sleep. This added relaxation of the muscles makes the back of the throat collapse more readily, which then causes snoring.
Cut down on or quit smoking. Cigarette smoke irritates the lining of the nasal cavity and throat, causing swelling and catarrh. If the nasal passages become congested, it’s difficult to breathe through your nose because the airflow is decreased.