The statistics on CAD are sobering. It is the most common form of cardiovascular disease in the United States and the leading cause of heart attacks. It is the number one killer of American men and women, responsible for more than one of every five deaths in 2001, according to the American Heart Association.
Further, in 50 percent of men and 64 percent of women who die suddenly from CAD, there are no previous symptoms. Most recent statistics show CAD as the primary cause of premature and permanent disability among American workers. About 84 percent of people who die as a result of CAD are 65 or older.CAD, angina and cardiac ischemia
People with CAD tend to have periodic episodes in which the heart does not receive enough oxygen-rich blood (cardiac ischemia). A person may feel no symptoms during these episodes ("silent" ischemia) or might experience significant chest pain, pressure or discomfort. Such episodes are temporary, but if cardiac ischemia is severe or lengthy, it could trigger cardiac arrest (heart attack, a condition in which the heart stops beating) or heart failure.