Many people think that snoring in bed (snoring) is a trivial matter, but only to affect the sleep of others. In fact, snoring is often a pathology, and sleep is often accompanied by varying degrees of apnea and hypoventilation, medically known as obstructive sleep apnea hypoventilation syndrome (OSAHS), which is a very common and serious health hazard to humans. Local factors such as obesity, nasal and oropharyngeal disorders, abnormal maxillofacial structures (e.g., small jaws), and systemic factors such as hypothyroidism and acromegaly can all contribute to OSAHS. Some patients have a family genetic predisposition, and the condition can be aggravated by whistling infections, obesity, a short thick neck, sleeping on one’s back, taking sleeping pills and drinking alcohol. Sleep apnea syndrome can have a significant impact on the body. Because of the back of the tongue or collapse of the airway in the throat during sleep to block the pathway of whistling, causing a temporary stop of whistling, air can not enter the lungs, resulting in repeated sleep hypoxia, metabolic waste carbon dioxide can not be expelled, causing a series of changes in the body. Some patients may fall asleep on their heads and sleep until dawn, but in fact sleep efficiency is very poor. Patients often experience: snoring, breath-holding, frequent pauses in inspiration at night; abnormal movements during sleep, insomnia, excessive dreaming and nightmares; polyuria and bedwetting. Daytime can be manifested as: poor sleep quality causing much drowsiness, fatigue, sleep without relief; memory loss, reduced work ability, poor academic performance; agitation and irritability; morning headache, dizziness, dry mouth, bitter mouth; impotence, decreased libido, etc. Some patients may even be severely drowsy during the day and nod off while driving in a traffic accident, resulting in a tragic car crash. This is a problem that has attracted great attention from medical and traffic management authorities in western countries. The most dangerous is the long-term repeated sleep apnea can lead to hypertension, induce coronary heart disease, cerebral infarction, cerebral hemorrhage, pulmonary heart disease, whistle failure, sudden death at night, dementia, gastroesophageal reflux and other diseases, but also cause sudden infant death syndrome or affect the growth and development of children, and even lead to mental retardation in children. The mortality rate associated with OSAHS is very high. Scientific studies have found that the 7-year mortality rate is as high as 16%. In patients with severe OSAHS followed for 8 years, 40% died. Of those who died suddenly, 20% were caused by sleep apnea syndrome. Therefore, snoring can no longer be considered as a sign of deep and sound sleep, it is a “health killer” that must be watched out for! This problem has been neglected for a long time, and people are not fully aware of its serious harm. Due to the existence of OSAHS, it often happens that: patients with hypertension, after taking a variety of antihypertensive drugs, their blood pressure still can’t be lowered; some patients repeatedly have angina pectoris or arrhythmia attacks at night, which can’t be controlled by drugs; some diabetic patients use many methods, but their blood sugar remains high; some people who die suddenly in their sleep are often diagnosed as myocardial infarction, ventricular fibrillation, cerebral hemorrhage, cerebral infarction, etc, cerebral hemorrhage, cerebral infarction, etc., but few people would further think that it is the hypoxia caused by OSAHS that induces the above conditions. When the above symptoms or conditions occur, the possibility of OSAHS should be considered and polysomnography should be performed. Polysomnography is currently the standard diagnostic and condition evaluation method for diagnosing sleep whistling disorders and is the basis for all treatment. Patients with sleep apnea should also routinely undergo upper airway endoscopy performed by a sleep specialist to understand the presence of nasal, pharyngeal, and laryngeal stenosis and to provide a basis for selecting the correct treatment. There are many treatment options for obstructive sleep apnea, but each has its own advantages and disadvantages. It is especially important to note that the efficacy of different methods varies greatly for different patients, so you should go to a regular hospital to receive a standardized examination and choose the right treatment based on the results of these examinations. Do not blindly accept the so-called drugs, devices or surgical treatments advertised in some small advertisements. Patients should receive a comprehensive treatment including lifestyle habits and weight control. There is no specific drug for OSAHS, but after a comprehensive evaluation, it is possible to control the disease and prevent other diseases caused by it by choosing the appropriate treatment method. Weight loss can be effective in obese people, and some patients can achieve some results by adopting the habit of lying on their side during sleep. At present, the most effective is to wear continuous positive airway pressure (CPAP) machine for home treatment during sleep, for patients with moderate to severe or combined cardiovascular and cerebrovascular disease has a very good effect, can prevent patients from sleep apnea, hypoventilation, so as to prevent hypoxia and other pathophysiological abnormalities, to improve the condition, prevent related organ damage and reduce the rate of death. Some mild to moderate patients who are not obese can choose oral appliance treatment, upper airway surgical treatment (radiofrequency ablation, laser, ENT surgery) according to the situation. However, surgical treatment should be chosen with caution because of the limited effectiveness, the five-year recurrence rate of more than half, and the increased difficulty of CPAP treatment due to structural changes in the upper airway after recurrence. Certain patients with abnormal maxillofacial structures may opt for oral orthoses, which will also be effective, and severe cases may require maxillofacial surgical treatment.