Possible causes of frequent anxiety: First, stress and personality factors, anxiety is considered to be a disease closely related to psychosocial factors, often in interpersonal relationships, marriage, family, economic, work and other aspects of the problem. On the one hand, it is related to the susceptibility quality of the individual; on the other hand, it is related to the personality characteristics of the patient, which is more easily dissatisfied with life caused. Secondly, neuroanatomical factors. In recent years, research has found that structural and functional abnormalities in some brain regions may be related to anxiety. For example, abnormalities in the function and structure of the prefrontal cortex-amygdala-thalamus may be closely related to anxiety. Additional studies have found that neurobiological factors are also closely related to anxiety, more commonly dopamine, 5-hydroxytryptamine, catecholamines, and neurotrophic factors are involved in several systems. There is no definite conclusion as to which specific cause of anxiety is responsible for anxiety, and it may be related to all of the above factors, and the exact relationship is still being studied.