does cigarette smoking cause lung cancer The harmful chemicals in directly damage cells, causing DNA mutations that increase risk. Over time, these damaged cells grow abnormally, leading to tumor formation in the lungs. Quitting smoking Smoking is the number one
Smoking is the number one cause of lung cancer. It causes about 90% of lung cancer cases. Tobacco smoke contains many chemicals that are known to cause lung cancer. If you still Pictures Better Than Words For Scaring Smokers off Cigarettes Cigar smoking causes lung cancer It's Lung Cancer Awareness Month, and smoking is the #1 cause. Thinking about quitting or know someone who is? Save this post or pass it on to someone you love.
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