Drug and alcohol addictions are often considered chronic diseases as evidenced by continuous abuse which often leads to the sad deterioration of health, both mentally and physically. For many people, the first decision to take drugs is spontaneous, almost experimental. But the ongoing use of drugs can cause brain changes that threaten the very self-control of an addicted person. This conflicts with their ability to withstand strong urges to take more drugs. An effective addiction therapy program will focus on the patient’s psychology and can strengthen their will to quit.