The life expectancy of a depressed person is the same as that of a normal person. Depression itself does not damage any organs or systems of the human body, nor does it directly lead to death. However, if depression cannot be treated in a standardized and effective manner, the patient’s symptoms will continue to worsen, and eventually develop a serious sense of inferiority and self-guilt, believing that his or her existence will drag down his or her family members, and losing confidence in life, and there is a possibility that he or she will commit suicide or self-harm, leading to his or her death. Therefore, once a patient with depression is ill, it is necessary to use antidepressants to control the onset or aggravation of the patient’s symptoms as early as possible to avoid accidents.