Drug abuse has become a worldwide problem in modern times. Drug means a habit-forming substance which is taken pleasure or excitement and which induces sleep or produces insensibility
Thousands of men and billions of dollars are involved in drug traffic. That is why it is so difficult to keep it under control.
When a drug is taken for the first time, it stimulates the pleasure centers of the brain. It is for sake of pleasure that most users first get accustomed to it. They take drugs to forget pain, sorrow, insult,and to escape from reality.