Snoring is a common phenomenon, most of them are partially obstructive and are more common in obese patients. Severe obstructive snoring can develop into obstructive sleep apnea hypoventilation syndrome (OSAHS). This is a sleep-related breathing disorder characterized by recurrent upper airway obstruction and irregular snoring during sleep. Scientifically, sleep apnea is defined as a complete cessation of oral and nasal respiratory airflow for more than 10 seconds (≤30%) during sleep; accompanied by a ≥4% decrease in blood oxygen saturation from basal levels or microarousals. Sleep apnea hypoventilation is defined as the intensity (amplitude) of airflow between 30% and 50% of the basal level for more than 10 seconds during sleep, accompanied by a decrease in oxygen saturation of ≥4% from the basal level or micro-awakening. Sleep apnea hypoventilation syndrome (OSAHS) is defined as recurrent episodes of apnea or hypoventilation of more than 30 times per night or more than 5 episodes per hour during sleep, with clinical symptoms such as drowsiness. OSAHS has a series of hazards. Patients suffer from poor sleep quality due to lack of fresh air during sleep, resulting in daytime sleepiness and drowsiness, morning headache, dizziness, fatigue, and memory loss. The lower blood oxygen concentration during sleep increases blood viscosity, and in the long run, patients’ lungs, heart and other internal organs are damaged, leading to the occurrence of serious diseases such as hypertension, heart disease, arrhythmia, and pulmonary heart disease.