how much is a pack of cigarettes in Chart: Where Smoking Breaks the Bank (& Where It Doesn't) How much does a pack

Tightens Blood Vessels Nicotine constricts arteries, raising blood pressure and putting stress on your heart

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IMAGE: National Cancer Institute / Unsplash Looking at genetic profiles taken from the bronchi (the air passage that leads from the windpipe to the lungs) of 14 people who have never smoked and comparing them with samples taken from 19 light, moderate, and heavy smokers, the scientists found that the cells do mutate with natural age, and even more so in the lungs of smokers

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