Coronary Artery Disease (CAD) happens when a waxy substance called plaque builds up inside the coronary arteries, which are in charge of supplying oxygen-rich blood to your heart muscle. When the arteries finally become blocked, neighboring organs can become damaged as the heart muscle struggles to function normally due to a repressed blood-flow (this is called ischemia).

Compromised heart function can have devastating effects on the entire body. Narrowed arteries in the heart (CAD) gradually leave your heart too weak or stiff to fill and pump blood efficiently, so Coronary artery disease progresses into a condition known as Congestive Heart Failure, where a chronic condition might develop or an acute heart failure can occur.