One third of life is spent in sleep, without good sleep, there is no good physical and mental rest and recovery. The importance of sleep is summarized in the following aspects: 1, eliminate fatigue, restore physical strength: sleep is the main way to eliminate physical fatigue. During sleep, the gastrointestinal tract and its related organs synthesize and manufacture energy substances for the body’s activities. In addition, due to the body temperature, heart rate, blood pressure drop, respiration and part of the endocrine reduction, so that the basal metabolic rate is reduced, so that the physical strength can be restored. 2, protect the brain, restore energy: sleep deprivation, manifested as irritability, agitation or depression, inattention, memory loss, etc.; long-term lack of sleep will lead to hallucinations. Those who have enough sleep are full of energy, quick thinking and high efficiency. This is due to the brain in the sleep state oxygen consumption is greatly reduced, conducive to brain cell energy storage. Therefore, sleep is conducive to the protection of the brain, improve brain power. 3, enhance immunity, rehabilitation of the body: the human body in normal circumstances, the invasion of a variety of antigens can produce antibodies, and through the immune response to remove them, to protect human health. Sleep can enhance the body’s ability to produce antibodies, thus strengthening the body’s resistance; at the same time, sleep can also make the organizations and organs to accelerate self-recovery. In modern medicine, sleep is often used as a therapeutic means to help patients get through the most painful period, so as to facilitate the recovery of the disease. 4, delay aging, promote longevity: in recent years, many research studies have shown that the healthy and long-lived elderly have a good and normal sleep. Human life is like a burning flame, and there is a regular combustion of life is long-lasting; if high and low combustion will shorten the time, so that people die early. Sleep time is just like the flame burning the smallest degree, so can delay aging, to ensure that the life of the long. Good sleep can not be separated from sleep with normal, smooth breathing. Without good and smooth breathing, snoring will be caused lightly, and when it is serious, the lungs will not get enough oxygen supply due to poor breathing, which will make the blood oxygen drop, and people will not get good rest and recovery during sleep, and the most serious case can make people die in sleep. Sleep breathing disorder 1, snoring (commonly known as snoring): the patient’s pharyngeal cavity structure is narrower, when the respiratory airflow through this structure, it will cause vibration and produce snoring sound, but no apnea. 2.Sleep Apnea (Sleep Apnea Hypoventilation Syndrome): The number of apnea and hypoventilation occurs more than 30 times during the whole night 7 hours sleep, or the number of apnea and hypoventilation occurs ≥ 5 times per hour. Classification of sleep apnea and hypoventilation syndrome: 1. Obstructive: most common, accounting for more than 90% of cases. There is no respiratory airflow from the nose and mouth, but respiratory movements in the chest and abdomen still exist. A common manifestation of the episode is that the patient snores continuously with a sudden interruption of snoring for a while, and then continues to snore after a loud snoring sound. 2.Central: there is no respiratory airflow in the nose and mouth, and there is no respiratory movement in the chest and abdomen at the same time. 3.Mixed: alternating between obstructive and central apnea overnight. Formation factors: obesity, short and thick neck, local anatomical narrowing of the airway, hypertrophic tonsils and adenoids, age factors, the older the more likely to produce, respiratory tract infections, sleeping in the supine position, drinking alcohol before going to bed, taking sleeping pills. Main manifestations: snoring (snoring), spasms and suffocation after suffocation, daytime sleepiness, fatigue, morning headache, nausea, mental retardation, memory loss and personality changes, vegetative nerve disorders and so on. Main diagnostic methods: 1. Evaluation of the degree of sleepiness 2. Primary diagnostic instrument examination 3. Polysomnography (PSG) monitoring. It can be treated by weight loss, side lying, quitting smoking and alcohol, physical exercise, CPAP, oral correction, surgical operation, traditional Chinese medicine and so on. For patients who snore, it is necessary to intervene as early as possible to eliminate cardiovascular and cerebrovascular hazards.