Now a days students have been addicted to alcohol,smoke and drugs like cocaine heroin.Alcohol/Smoking/Drugs taking students are increased day by day.They are increasing the risk of their respitatory system.Smoking and drinking can weaken their immune system. They can have many repeated health issues.Also by this they can get personality change, sudden mood changes , irritability, irresponsible behaviour, depression.By this they can start arguments,breaking the rules,withdrawing from the family.By this they can lose interest in studies, they can have negative attitude and discipline problems.By this they can friendship with bad friends.