does tar in cigarettes cause cancer What chemicals are a cigarette? | What smoking do to your body? Health Effects of Cigarettes: Cancer

Health Effects of Cigarettes: Cancer Smoking and Tobacco Use CDC Smoking and cancer Fresh 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 Health Effects of Smoking on Your Body Cigarette Tar PMI Science An illustration depicting cigarettes and a pair of lungs affected by smoking. A number of respiratory disorders are causally linked to smoking, including asthma, chronic obstructive pulmonary disease, laryngeal cancer, lung cancer

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