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Tobacco smoking is harmful to health

Tobacco smoking is harmful to health. Tobacco smoke contains more than 7000 chemical compounds. Many of these agents are toxic, and more than 69 – including polyaromatic hydrocarbons (PAHs) and tobacco-specific nitrosamines – cause cancer. See also the Safety section for more information. Cigarette smoking is a known cause of at least 25 diseases, including lung and other cancers (bladder, ...

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