What is heart disease?
Cardiovascular disease (CVD) is another term used to describe diseases of the heart and blood vessels. The most common is hardening of the arteries, which is called atherosclerosis.
Arteries are blood vessels that carry blood away from the heart. Arteries harden when there is a build-up of cholesterol and other fats on the inside of the artery. This fat buildup causes the arteries to get smaller and blood cannot get through the arteries as easily.