does smoking cigarettes cause lung cancer How cancer? What Causes Lung Cancer, Is
What Causes Lung Cancer, Is It Hereditary & Known Risk Factors HealthMatch Smoking and Lung Cancer: How Big is the Problem Today? 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 Preventing Chronic Disease: April 2007: 06_0024 It's Never Too Late to Break Free from Smoking According to the CDC, cigarette smoking is the No. 1 risk factor linked to lung cancer. It accounts for 80 to 90% of lung cancer related deaths. However, early detection means more options
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