what are the chemicals in cigarettes that cause cancer Tobacco and Cigarettes contain thousands of chemicals—over
Cigarettes contain thousands of chemicalsover 7,000 have been identifiedmany of which are toxic, and at least 70 are known to cause cancer. When a cigarette burns, these chemicals are inhaled deep Tobacco and Cancer Cancer CDC Tobacco smoking Wikipedia Health effects of smoking tobacco Wikipedia Cigarettes cause bladder cancer. The harmful chemicals in smoking directly damage lung cells, causing DNA mutations that increase cancer risk. Over time, these damaged cells grow abnormally, leading to tumor formation in the lungs. Quitting smoking
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