lung cancer caused by cigarettes What You Need to Know About Smoking and 9 of the Worst Diseases

9 of the Worst Diseases You Can Get from Secondhand Smoke State of Tobacco Control American Lung Association Cigarette smoking is the leading risk factor for lung cancer which is the second most common cancer in men in Malaysia. #NCSM #NCSMEdu #NoTobacco Effects of smoking on 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

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