1.Why should we pay attention to the respiratory status of children during sleep? Breathing and sleeping are two important physiological processes in a person’s life, and both play an important role in maintaining normal human physiological activities. “Life goes on, breathing goes on”, and more than one-third of a person’s life is spent in sleep. Breathing is necessary for the existence of life, while adequate sleep can eliminate fatigue, restore physical strength, protect the brain, enhance immunity and so on. For children, adequate sleep not only promotes physical development, but also facilitates intellectual development and healthy psychological growth. Abnormal respiratory status during sleep not only affects the child’s daily activities and growth and development, but also is associated with pediatric recurrent respiratory infections, chronic cough, asthma and other respiratory diseases and enuresis, obesity, attention deficit hyperactivity disorder in children and other diseases. 2.What is pediatric obstructive sleep apnea hypoventilation syndrome? Children’s obstructive sleep apnea hypopnea syndrome is a kind of pediatric sleep respiratory disorder, in recent years, with the progress of society and people’s living standards, parents pay attention to their children’s sleep health problems, the disease is also increasingly by the health care personnel and pediatric parents pay attention to. Children’s obstructive sleep apnea hypoventilation syndrome is medically defined as a series of pathophysiological changes caused by frequent partial or total upper airway obstruction during sleep, which disrupts children’s normal ventilation and sleep structure. 3. What are the effects of obstructive sleep apnea hypoventilation syndrome on children’s physical and mental health? Symptoms of children suffering from this disease often appear during sleep, manifested as sleep disorders, such as sleep snoring, open-mouth breathing, sleep restlessness, sleep apnea, nocturnal awakening, sleepwalking, enuresis, etc. Affected children can be sleepy and drowsy during the day. If children with obstructive sleep apnea and hypoventilation syndrome are not detected in time and intervened, they may also suffer from poor growth and development, metabolic disorders, cognitive deficits, behavioral abnormalities (hyperactivity, inattention, and poor academic performance), cardiovascular diseases (pulmonary hypertension, hypertension, and cardiac arrhythmia), and even sudden death. In addition, children with obstructive sleep apnea hypopnea syndrome who breathe through their mouths for a long period of time, the airflow impacts the hard palate for a long period of time will make the hard palate deformed and high arched, and over time, the development of the face will be deformed, and there will be the situation of a short, thick, and curved upper lip, a sagging mandible, the disappearance of nasolabial sulcus, a high arch of the hard palate, poorly aligned teeth, and projecting teeth, which is known as the “adenoid facial features Adenoid face”. 4.How can I find out my child has obstructive sleep apnea hypoventilation syndrome at an early stage? If parents find the following problems in their children’s sleep, they should consult a doctor as soon as possible to improve the relevant examination and be alert to Obstructive Sleep Apnea Hypoventilation Syndrome. (1) Sleep snoring, open-mouth breathing, waking up with sleep suffocation, or repeated rolling over during sleep; (2) excessive sweating during sleep, nightmares during sleep, teeth grinding, or sleepwalking; (3) urination during sleep, or increased nocturia; (4) headache, dizziness, and dryness of lips or pharynx after awakening from sleep; (5) daytime drowsiness, short-temperedness, irritability, capriciousness, or provocativeness; (6) lack of concentration, delayed reaction, decreased learning ability, or memory loss; (7) poor memory; and (8) poor concentration, poor response, and decreased learning ability. (6) Poor concentration, slow reaction, reduced learning ability or memory loss; (7) Growth retardation or obese children.