Smoking is bad to health.
There are more serious long-term effects as well. Smoked tobacco in the forms of cigarettes, pipes, and cigars causes lung cancers, emphysema, and other respiratory diseases. In fact, smoking causes ninety percent of all lung cancer cases.
Twenty percent of heavy smokers get the chronic lung disease called emphysema, which causes the narrowing, and clogging of the airway passages in the lungs. This disease is seldom seen in nonsmokers. Smokers are also at least four times more likely to develop oral and laryngeal cancer than nonsmokers.
Smoking contributes to heart disease. It increases the risk of stroke by nearly 40% among men and 60% among women. Smoking is an addiction. Tobacco smoke contains nicotine, a drug that is addictive and can make it very hard, but not impossible, to quit.