Addiction refers to a chronic, relapsing disorder characterized by compulsive drug seeking and use despite adverse consequences. It is considered a human brain disorder, because it causes many functional changes to brain compartments functioning in reward, stress, and self-control, and those changes may last a long time after a person has stopped the consumption of drugs.Drugs and alcohol are addictive substances. Once a person becomes addicted to these abuses, it is not easy to get rid of oneself. Their addiction and dependence could produce severe outcomes that may lead to a long term problem and adolescents are more prone to getting into these habits.Alcohol and drug abuse can be called a very common problem that our society is facing today. If left untreated, the addiction may lead to serious issues in the long run.