Why are cigarettes addictive?

Why is it hard to quit smoking, are cigarette sort of drugs? And can anyone tell me why smoking is considered cool

Re:why are cigarettes addictive

Smoking initiates many processes in the body. As nicotine enters, the endorphin is released and you are actually becoming high. Yes these are sort of drugs which have obvious symptoms like becoming anxious, sweating and feeling of physical illness on removal. But you can easily give-up this habit. I found a good e-book on Smoking Cessation (http://www.stop-smoking-guru.com). Concerning cigarettes being cool, I dont agree with you. What I feel is that some great personalities fall victim to this habit making it look cool which is surely a myth.