tobacco in bloodstream Smoking affects the heart long before symptoms appear. Each cigarette delivers chemicals that enter the within seconds, reaching the heart and blood vessels almost immediately. These substances damage the inner lining The Content – Science Education
The Content Science Education Enhances Knowledge (SEEK) Understanding Tobacco Smoking and Health Effects Nicotine Grows New Blood Vessels Science AAAS How Nicotine and Tobacco Affect Your Heart Hunterdon Vascular Care
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