Changes

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]], [[stroke]], [[brain damage]], [[cancer]] of the [[lung]] and [[mouth]], and severe damage to the [[fetus]] of a [[pregnancy|pregnant woman]].  Cigarettes also contain unusually high levels of [[radiation]] due to the presence of [[radium]] and [[polonium]], further exacerbating health problems.  Numerous studies have shown that on average, nonsmokers live 10 years longer than smokers.  

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]], [[stroke]], [[brain damage]], [[cancer]] of the [[lung]] and [[mouth]], and severe damage to the [[fetus]] of a [[pregnancy|pregnant woman]].  Cigarettes also contain unusually high levels of [[radiation]] due to the presence of [[radium]] and [[polonium]], further exacerbating 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 often 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.  

[[Category:Drugs]]

[[Category:Drugs]]

[[Category:Health]]

[[Category:Health]]