does tobacco cause lung cancer Smoking is the number one of cancer. It causes about 90% of lung cases. smoke contains many chemicals that are known to cause lung cancer. If you still Smoking: The Main Cause of
Smoking: The Main Cause of Lungs Cancer Causes of lung cancer include smoking, second hand smoke exposure, Download Scientific Diagram How does smoking cause cancer? Cancer Research UK 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
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