what in cigarettes causes lung cancer How does smoking cause cancer? The harmful chemicals in smoking
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 Pictures Better Than Words For Scaring Smokers off Cigarettes Qualitative Testing of Revised Health Warnings for Cigarette Packages and on Cigarette 2019 Lung Cancer Treatment & Smoking Effects American Oncology
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