According to the U.S. Centers for Disease Control and Prevention, if all forms of major cardiovascular diseases were eliminated, life expectancy would rise seven years.

Coronary heart disease — disease of the blood vessels that feed the heart — is a major cause of premature death, and more than 6 million people in the United States live with the painful, debilitating condition known as angina pectoris, caused by inadequate blood flo

Coronary artery disease is a condition in which fatty deposits accumulate in the cells lining the wall of a coronary artery and obstruct the blood flow.

The pressure in the arteries can be increased in various ways. For one, the heart can pump with more force, putting out more fluid each second. Another possibility is that the large arteries can lose their normal flexibility and become stiff, so that they can't expand when the heart pumps blood through them. Thus, the blood from each heartbeat is forced through less space than normal, and the pressure increases. That's what happens in elderly people whose arterial walls become thickened and stiff because of arteriosclerosis. Blood pressure is similarly increased in vasoconstriction—when the tiny arteries (arterioles) are temporarily constricted as a result of stimulation by nerves or by hormones in the blood. A third way in which the pressure in the arteries can be increased is for more fluid to be added to the system. This happens when the kidneys malfunction and aren't able to remove enough salt and water from the body. The volume of blood in the body increases, so the blood pressure increases.

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