There are several situations when you can’t breathe while sleeping: 1, nose blockage, like some people have allergic rhinitis or chronic rhinitis, too much secretion in the nasal cavity, this sometimes in sleep, unconsciously mouth closed, and then gasping for air with the nose and can’t breathe, will be suffocated awake. 2, asthma or allergy patients, in the middle of sleep is more prone to asthma attacks, this time there will be night You may not be able to breathe, or even wake up. In this case, we should pay attention to whether there is any previous history of allergy or any family history of allergy, so that we can easily find the beginning of the disease. 3, there is a more serious disease called sleep apnea syndrome, this disease is due to the collapse of the tongue muscle, the pharyngeal cavity of the entire mucous membrane congestion, resulting in respiratory pause in sleep, will lead to a series of future endocrine metabolic problems, and easy to It can lead to hypertension, coronary heart disease, cerebrovascular disease, so it is a more serious disease, need to go to the hospital for diagnosis and treatment.