To name a few there is acetone, ammonia, tar, benzene, cadmium, hydrogen cyanide, carbon monoxide, and nitrogen oxides etc (Naturstopp). In conclusion if you want to live long and not have to deal with the health risk that is involved, do not even think to start smoking a cigarette.Almost everyone knows that smoking causes cancer, emphysema, and heart disease; that it can shorten your life by 10 years or more; and that the habit can cost a smoker thousands of dollars a year. Like heroin or other addictive drugs, the body and mind quickly become so used to the nicotine in cigarettes that a person needs to have it just to feel normal.People start smoking for a variety of different reasons. Others start because their family members or friends smoke.In the future, hookahs and e-cigarettes that are sold will need to be approved by the FDA, and companies will need to post health warnings so that people know their risks.But one thing is still certain: there's no such thing as a "safe" nicotine product. The body doesn't need tobacco the way it needs food, water, sleep, and exercise. First-time smokers often feel pain or burning in the throat and lungs, and some people feel sick or even throw up the first few times they try tobacco.Statistics show that about 9 out of 10 tobacco users start before they're 18 years old.Most adults who started smoking in their teens never expected to become addicted.Like heroin or other addictive drugs, the body and mind quickly become so used to the nicotine in cigarettes that a person needs to have it just to feel normal (Smoking).Nicotine is the main addictive ingredient in a cigarette that activates synthesis of a chemical called dopamine in the brain (Naturstopp).When your parents were young, people could buy cigarettes and smoke pretty much anywhere — even in hospitals! Today we're more aware about how bad smoking is for our health.Smoking is restricted or banned in almost all public places and cigarette companies are no longer allowed to advertise on TV, radio, and in many magazines. Smoking is a hard habit to break because tobacco contains nicotine, which is highly addictive.