Some people will not sleep, yawn, most of this situation is caused by non-disease factors, common environmental hypoxia, lack of sleep, etc., do not need to worry about, just pay attention to the air circulation in the environment, usually pay attention to rest can be; some disease factors can also lead to the occurrence of this situation, common brain disease, atherosclerosis, anemia, etc., need to actively treat the original disease To avoid aggravation of the condition. A, non-disease factors 1, environmental factors: if long-term in a confined space or indoor air is not smooth enough, there may be no sleep, yawning, in addition, the weather may also lead to this situation; 2, lack of sleep: the performance of non-drowsy, yawning may also be related to the lack of sleep time, which is because the lack of sleep will lead to brain cells in a state of tension for a long time And not enough rest, resulting in brain ischemia, non-drowsy, yawning situation. It is recommended not to stay up late, ensure sufficient sleep, pay attention to diet, eat more fresh fruits and vegetables, more physical exercise. Second, the disease factor 1, brain disease: common in the elderly, certain brain disease patients will also be due to brain blood flow obstruction, ischemia, hypoxia and non-drowsiness, yawning, such as cerebral infarction, but also accompanied by a side of the body disorders and other performance, this should go to a regular hospital to do the examination, to clarify the cause, early treatment; 2, atherosclerosis: if you usually like high-fat, high cholesterol food, and Lack of exercise will lead to increased blood viscosity, resulting in atherosclerosis, affecting the blood supply, will also appear not sleepy, yawning; 3, anemia: anemic patients may also appear not sleepy, yawning, which is due to anemia patients with insufficient blood flow, can not provide sufficient oxygen to the cerebral vessels.