Some chronic diseases during sleep have been neglected by us for a long time because the main symptoms appear at night and are difficult to observe during the day, such as obstructive sleep apnea hypoventilation syndrome (hereinafter referred to as OSAHS). Due to intermittent obstruction of the upper airway during sleep resulting in recurrent temporary respiratory arrest, which induces insufficient oxygen supply to the body, the organism is frequently in a state of stress and does not receive the rest that comes with normal sleep, resulting in daytime drowsiness, fatigue, and lack of concentration. The incidence of operational errors and mistakes increases for those who are engaged in operational work. Numerous studies have shown that drivers with OSAHS are 3-7 times more likely to be involved in traffic accidents than other drivers. The most common symptom of OSAHS is snoring during sleep, with high and low snoring sounds, sometimes breathing suddenly stops completely, family members can observe sudden stopping of breathing and snoring, followed by loud snoring, recovery of breathing, violent heaving of chest and abdominal walls, severe patients can wake up suffocating or even sitting up suddenly, and feel panic and sweating after waking up suffocating. As there is often open-mouth breathing during sleep, it causes dry throat and sore throat; nightmares, murmuring and convulsions. Some patients may experience insomnia. Studies have shown that the severity of OSAHS is associated with elevated blood pressure at night and with refractory hypertension. OSAHS increases the risk of angina pectoris at night and induces arrhythmias in patients with coronary artery disease; it can aggravate or induce gastroesophageal reflux, manifesting as marked acid reflux and heartburn, and recurrent choking at night; it also leads to insulin resistance and hyperglycemia or abnormal glucose tolerance; and it can cause sexual dysfunction and Sex hormone secretion disorder. Fortunately, after decades of research and practice, the diagnosis and treatment of OSAHS has formed a relatively stable pattern in the medical community, and we hope that more patients will improve their understanding and receive timely and appropriate treatment.