Modern medical science has discovered that snoring is often related to physical obstructive
breathing during sleep. This physical obstruction occurs when the muscles of the palate, the
uvula, and sometimes the tonsils relax during deep sleep, and act as vibrating noise-makers when
the air of breathing moves across them (see reverse side). Excessive bulkiness of tissue in the
back of the throat into the airway can also contribute to snoring, as can a long palate and/or
uvula.