Addiction is the reliance on a routine. There are many addictive stages. Addiction, as it comes along, becomes a way of life. The persistent use of the substance causes to the user serious physical or psychological problems and dysfunctions in major areas of his or her life. The drug user continues to use substances and the compulsive behavior despite the harmful consequences, and tries to systematically avoid responsibility and reality, while he or she tends to isolate himself/herself from others because of guilt and pain (Angres, & Bettinardi-Angres, 2008). All these characteristics led to the conclusion that drug addiction is a chronic, relapsing brain disease that is characterized by compulsive drug seeking and use. It is considered as a brain disease because drugs change the structure of the brain, and how it works. Every drug affects different systems of the brain. For example, in the case of cocaine, as the brain is adapted in the presence of the specific drug, brain regions responsible for judgment, decision-making, learning, and memory begin to physically change, making certain behaviors “hard-wired.” In some brain regions, connections between neurons are pruned back. In others, neurons form more connections. (Martin, 2000) These brain changes can be long-lasting and can lead to the harmful behaviors seen in people who abuse drugs.

Adolescents drug abuse coexist with other mental disorders, such as attention-deficit-hyperactivity disorder, affective disorders,