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The Effects of Smoking On Health
Member rating: No Rating | Words: | Submitted: Mon Aug 18 2003
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THE EFFECTS OF SMOKING ON HEALTH Smoking is the act of inhaling the fumes of burning substances. It used to be men who mainly smoked pipes and cigars which involve little inhalation. Now a days the amount of young women and children smoking is on the increase although the overall amount of people who smoke is declining in most countries. There are thought to be around 4000 different chemical in a cigarette, many are toxic and 43 of them are carcinogens. The main substances in a cigarette are tar, carbon monoxide and nicotine. It is these three substances which cause the greatest threat to health causing damage to either the gaseous exchange or the cardiovascular system. Tar is dangerous because it settles on the lining of the airways in the lungs. In the 1950's it was found to cause changes that can cause lung cancer and lung disease. ...
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