Heart Disease Heart disease is an abnormal condition of the heart and the heart circulation. It is also known as cardiovascular disease which is our nation's number one killer. The coronary arteries supply the heart with oxygen-rich blood. When the arteries narrow, less blood and oxygen f...

Cardiovascular diseases rank as America's number 1 killer. They claim the lives of 42.7 percent of the more than 2 million Americans who die each year. Cancer follows, killing 23.8 percent. All other causes of death account for 33.5 percent. Medical research continually seeks to reduce di...