Nowadays drugs are one of the leading causes of death among humanism, especially teenagers. Drug is any substance other than food, intended for use in diagnosis in human or other animals. According to this definition, drugs can be used as long as purposes mentioned in the above definition are fulfilled. Unfortunately, today drugs are abused. Some people often take these drugs as well as to 'relief' pain, anxiety, frustration, boredom, anger, giddiness, and so forth. Other people take drugs to experience the 'rush' or 'high' that will result as the drug hits their brain and nervous system.…