does the tar in cigarettes cause cancer How Do Cancer? π What Happens When You
What Happens When You Smoke? Cigarettes contain nicotine, tar, and carbon monoxide. Short term effects: Increased heart rate Higher blood pressure Reduced oxygen Long term effects: Lung cancer Tobacco and Cancer Cancer CDC 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 What chemicals are in a cigarette? What does smoking do to your body? Cancer Research UK Understanding the Health Dangers of Tar and Nicotine Tar PPTX
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