Addiction is a long-term (chronic) disease. It involves seeking out drugs and using them even when the results are harmful. Addiction may also be called substance abuse disorder. It can be caused by using too much of a drug or alcohol. Over time, addiction changes the structure and function of the brain. Find out more about addiction by taking this quiz.
Drug addiction and alcohol addiction are chronic diseases that can be treated as successfully as many other chronic diseases, including high blood pressure, asthma, and diabetes.