can smoking cigarettes cause lung cancer causes - Back of pack The Difference Between Healthy Lungs
The Difference Between Healthy Lungs and Smoker's Lungs 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 Nearly 80 percent of Doctors Worldwide Mistakenly Believe Nicotine Causes Lung Cancer CoEHAR How Quitting Smoking Lowers Lung Cancer Risk and Other Illnesses
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