Heart disease is also known as Coronary Artery Disease, a term which clearly describes the underlying problem. It is a condition involving atheroscleosis of the coronary arteries and arterioles, resulting in a reduction in blood supply to the heart muscle. In advanced cases, lack of blood and therefore oxygen results in the painful condition called Angina. Coronary Artery Disease is the most common Cardiovascular Disease in the Western world.

Congestive heart failure (CHF) occurs when the heart cannot pump out enough blood to meet the needs of the body. Any form of heart disease may lead to CHF, which results in a reduced ability to exercise and in severe cases can impair daily function. CHF is the most common cause of death for people over age 65.