does the tar in cigarettes cause cancer Content – Science Education Enhances Knowledge (SEEK) How does smoking cause cancer?
How does smoking cause cancer? Cancer Research UK Cancers linked to tobacco use make up 40% of all cancers diagnosed in the United States CDC Online Newsroom CDC 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 Smokeless tobacco and cigarette smoking: chemical mechanisms and cancer prevention Nature Reviews Cancer
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