Heart failure is a condition in which the heart can't pump enough blood to meet the body's needs.
A person with coronary heart disease has an accumulation of fatty deposits in the coronary arteries. These deposits narrow the arteries and can decrease or block the flow of blood to the heart.
Strokes are classified as either ischemic or hemorrhagic. Ischemic strokes are caused by the blockage of an artery. Hemorrhagic strokes are caused by bleeding in the brain.
A heart attack happens when the blood supply is cut off from the heart muscle, usually because of a blood clot. Without blood and oxygen, the muscle cells are damaged and die.