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 Health Effects of Cigarettes: Cancer Smoking and Tobacco Use CDC Tobacco Awareness and Prevention Roane State Community College Tobacco and Cancer Cancer CDC Smoking and cancer Fresh The Many Dangers of Tobacco Use UC Davis Biotechnology Program
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