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 doesn't just affect your

Smoking doesn't just affect your lungs it impacts your heart and brain too. From reduced lung function and increased risk of heart disease to cognitive decline and stroke, the effects of 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 10 Harmful Effects of Cigarette Smoking on the Respiratory System Pictures Better Than Words For Scaring Smokers off Cigarettes Lung

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