Answer:

 

About 30% of all deaths from heart disease in the U.S. are directly related to cigarette smoking. Smoking is a major cause of atherosclerosis.

Among other things, the nicotine present in smoke causes:

• Decreased oxygen to the heart.

• Increased blood pressure and heart rate.

• Increase in blood clotting.

• Damage to cells that line coronary arteries and other blood vessels, triggering atherosclerosis and heart disease.

1. [...] What’s the link between smoking and heart disease? [...]

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