User talk:Mohammad Shahiryar

Tobacco: Tobacco is another drug that people can come dependent on.Cigarettes contain the drug nicotine which the smoker breaths in,making them feel relaxed.The smoke contains tar which also goes into the lungs and can cause breathing problem and lungs cancer. Teenagers often feel that it is 'grown-up' to smoke. Unfortunately,once they start to smoke they find it very difficult to stop it because smoking is addictive.It is a lot easier to say 'no' if you are offered a cigarette than to try to stop smoking later.