Heart Disease
All muscles, including the heart, need a constant supply of oxygen
and nutrients that are carried to it by the blood in the coronary
arteries. When the coronary arteries become narrowed or clogged
and cannot supply enough blood to the heart, the result is Coronary
Heart Disease. If insufficient oxygen-carrying blood reaches the
heart, the heart sometimes responds with pain called angina. The
pain can be felt in the chest, left arm or shoulder. At times, this
inadequate blood supply causes no symptoms and is called silent
angina.
A heart attack results when the blood supply is cut off completely.
The portion of the heart that receives inadequate oxygen begins
to die, and some of the heart muscle can be permanently damaged.
Coronary Heart Disease is caused by a thickening of the inside
walls of the coronary arteries or atherosclerosis. Atherosclerosis
narrows the space through which blood can flow which decreases and
sometimes completely cuts off the oxygen supply and nutrients to
the heart.
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