What causes continuous insomnia?

The causes of continuous insomnia are as follows: First, anxiety, depression state: the vast majority of patients are accompanied by insomnia, and continuous insomnia, these patients must first take anti-anxiety, antidepressant drugs, and then take drugs to improve sleep, such as zolpidem, dexzopipramol, alprazolam and so on. Second, disease factors: for example, cerebrovascular disease, Parkinson’s disease, Alzheimer’s disease, as well as somatic diseases, such as lung infection, chronic obstructive pulmonary disease, heart failure, etc., can cause continuous insomnia, generally need to treat the primary disease. Third, physiological phenomena: in the clinic, found that there are many patients, especially middle-aged and elderly friends, suddenly a week in a row can not sleep, but really can not find the reason, for such patients need to take sleeping pills, preferred zolpidem, right zopiclone.