Patients who have emotional disorders such as anxiety and depression can easily cause insomnia symptoms. Some patients who are more mentally stressed, have a very heavy burden of thought, or experience impatience or depression, these patients may also have difficulty falling asleep during the daytime. In addition, if the patient’s sleep environment is not very good, such as the bedroom has light or noise interference, or the ambient temperature is too cold or too hot, it may make it difficult to fall asleep. Insomnia can also be caused by travel with jet lag or a change in the sleep environment, or if the patient has poor sleep habits. For example, patients do not have a regular rest time, like to read cell phones and play games in bed, like to stay up late, sleep a lot during the day or read novels or watch movies before going to bed, these are likely to lead to insomnia at night and some patients will not be able to sleep during the day.