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A '''cigarette''' is a product typically comprised of cured [[tobacco]] leaves rolled in paper into a cylinder shape.

A '''cigarette''' is a product typically comprised of cured [[tobacco]] leaves rolled in paper into a cylinder shape.

Despite the fact that smoking is an enjoyable and relaxing pastime, cigarettes are [[addiction|addictive]] due to the presence of the toxic chemical [[nicotine]], and even occasional use carries a high risk of causing [[asthma]], [[emphysema]], [[heart attack]], [[cancer]] of the [[lung]] and [[mouth]], and severe damage to the [[fetus]] of a [[pregnancy|pregnant woman]].  The presence of these chemicals  further exacerbates health problems.  Numerous studies have shown that on average, nonsmokers live 10 years longer than smokers.  

Despite the fact that smoking is an enjoyable and relaxing pastime, cigarettes are extremely [[addiction|addictive]], comparable to [[heroin]] though without the pronounced physical withdrawal symptoms of opiate withdrawal, due to the presence of the toxic chemical [[nicotine]], and even occasional use carries a high risk of causing [[asthma]], [[emphysema]], [[heart attack]], [[cancer]] of the [[lung]] and [[mouth]], and severe damage to the [[fetus]] of a [[pregnancy|pregnant woman]].  The presence of these chemicals  further exacerbates health problems.  Numerous studies have shown that on average, nonsmokers live 10 years longer than smokers.  

A cigarette works as follows: The tobacco is lit and the resulting smoke is inhaled by sucking it through the cigarette. This encourages the rest of the tobacco to burn.  Cigarettes often have a filter on the mouth end, to provide a smoother and cleaner smoke, for increased ease of inhaling and also for improved taste.

A cigarette works as follows: The tobacco is lit and the resulting smoke is inhaled by sucking it through the cigarette. This encourages the rest of the tobacco to burn.  Cigarettes often have a filter on the mouth end, to provide a smoother and cleaner smoke, for increased ease of inhaling and also for improved taste.