how does cigarette smoke cause cancer The harmful chemicals in smoking directly damage lung cells, causing DNA mutations that increase risk. Over time, these damaged cells grow abnormally, leading to tumor formation in the lungs. Quitting smoking Smoking is the most preventable
Smoking is the most preventable cause of cancer Eurolab How tobacco* impacts your health Cigarettes: the hard truth Canadian Cancer Society Health Effects of Cigarettes: Cancer Smoking and Tobacco Use CDC How cigarette smoke skews immune responses to promote infection, lung disease and cancer Nature Reviews Immunology Health Effects of Smoking on Your Body
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