Drug addiction may be considered as a disease by a lot of people. Changes in the brain structure have caused effects to the body and mentality of a person which may have caused him to compulsively crave drugs and the euphoria it brings. On a short term basis, it gives a temporary escape from the harsh realism. For a while, there is a break away from the cruelty and callousness of the world. However in the long run, the temporary escape leads to h...