cigarettes contain how many chemicals Cigarette Tar Cigarettes contain cancer-causing chemicals and

Cigarettes contain cancer causing chemicals and the addictive drug nicotine. Tobacco smoking is a major cause of lung cancer and chronic bronchitis Stock Photo Alamy Chemicals in Cigarettes and Tobacco: What's Burning? Cigarettes contain thousands of chemicalsover 7,000 have been identified many of which are toxic, and at least 70 are known to cause cancer. When a cigarette burns, these chemicals are inhaled deep Tobacco use imposes a hereditary burden upon offspring. It elevates the risk of birth defects by 68% and the incidence of brain abnormalities, such as anencephaly (a condition characterized by incomplete brain

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