Snoring, commonly known as snoring. According to survey statistics, about 20-30% of the population snores, and the incidence rises gradually with age. Mild snoring has little effect on the human body. The snoring that causes special concern in the medical field is snoring with apnea during sleep, namely sleep apnea syndrome (SAS). Apnea and hypoventilation occasionally occur in normal people during sleep, but they generally do not cause serious harm to people and thus have no clinical significance. Sleep apnea syndrome is diagnosed if apnea and hypoventilation occur frequently, more than 5 times per hour or more than 30 times during a 7-hour sleep period. Symptoms of sleep apnea syndrome: sleep snoring, intermittent snoring, snoring again after a few seconds to tens of seconds; sleep repeatedly suffocated awake, sleep restlessness, involuntary tossing, and even coma convulsions; sleep without relief, daytime sleepiness, drowsiness, and even fall asleep at work or driving; headache, dizziness, and feeling of dry mouth after waking up; increased blood pressure and irritability after waking up; memory loss, slow reaction, work and study The ability to work and study is reduced, and nighttime urination is increased; impotence, decreased libido, etc.