how cigarette smoking causes lung cancer Smoking: The Main Cause of Lungs Cigarette smoking is the leading
Cigarette smoking is the leading risk factor for lung cancer which is the second most common cancer in men in Malaysia. #NCSM #NCSMEdu #NoTobacco Not every smoker gets lung cancer but that doesn't mean it's safe. Some people smoke for years and never develop lung cancer, while others get it much earlier. Why? It comes How Do Cigarettes Cause Cancer? Memorial Sloan Kettering Cancer Center 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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