how many chemicals are in cigarettes that cause cancer DidYouKnow, a #cigarette contains 7000 chemicals. Hundreds of those known to be harmful & 70 #cancer How does smoking cause cancer?
How does smoking cause cancer? Cancer Research UK What do we know about the health risks of thirdhand smoke? Thirdhand Smoke Resource Center Health Effects of Cigarettes: Cancer Smoking and Tobacco Use CDC 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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