how do you get lung cancer from smoking cigarettes Cigarette Is the Main Cause of 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 When you quit smoking, your risk of lung cancer goes down, along with your risk for a variety of other conditions. But you're still at a higher risk than someone who never This is how lung cancer develops. WARNING Smoking causes lung cancer Second Hand Smoke Exposure and Risk of Lung Cancer Among Nonsmokers in the United States: A Systematic Review and Meta Analysis

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