The clinical manifestations of sleep apnea syndrome are diverse and manifest in multiple systems throughout the body, however, there are usually three most common manifestations: snoring, sleep apnea at night and daytime sleepiness. Snoring is one of the most common symptoms, but of course, it is not necessary to suffer from sleep apnea syndrome if you snore. The nature of snoring is different for different people: the light ones only occur when they are tired, drink alcohol or sleep on their backs; the heavy ones snore like thunder every night and never stop, which is called habitual snoring; some people snore evenly and regularly, usually without apnea, which is called simple snoring; while patients with sleep apnea syndrome snore suddenly high and low, intermittently for tens of seconds to several minutes without any sound, and sometimes they can also make The family can obviously feel the patient’s breathing stop. During the daytime, the patient is sleepy and weak, and the spirit is depressed, which obviously affects work and life in serious cases. When you find that you or someone around you has the following conditions, you should consider whether they have sleep apnea syndrome: 1.sleep snoring, open-mouth breathing, frequent respiratory arrest; 2.daytime sleepiness, fatigue, drowsiness or even fall asleep at work, meetings or driving; 3.repeatedly wake up during sleep, sleep restlessness; 4.abnormal movement during sleep, limb twitching; 5.frequent nocturnal angina or cardiac arrhythmia 6. loss of urine during sleep and a marked increase in nocturnal urination; 7. headache after waking up from sleep, dizziness, and often a marked increase in blood pressure after waking up in the morning; 8. memory loss, slow reaction, and reduced ability to work and study; 9. reduced sexual function and impotence; 10. personality change, irritability, depression, etc.; 11. inability to sleep at night and a sense of terror.