why 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 How does smoking cause cancer?

How does smoking cause cancer? Cancer Research UK 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 Smoking & Lung Cancer: How Cigarettes Damage Your Lungs #DYK? Cigarette smoking causes about 80% to 90% of lung cancer deaths in the United States and can lead to respiratory diseases like COPD. Protect your lung health by quitting smoking. Learn more at A vaccine to stop lung cancer? It's made from tobacco taxes and legislation

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