what are the chemicals in cigarettes that cause cancer Health Effects of Smoking on Your Body How does smoking cause cancer?
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 Cigarette smoke contains more than 7,000 harmful chemicals, many of which are proven to cause cancer and other serious illnesses. There are around 500 stop smoking services with specialists who want to How Do Cigarettes Cause Cancer? Memorial Sloan Kettering Cancer Center
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