What is heart disease?
Coronary artery disease (CAD), also called coronary heart disease, or simply heart disease, happens when plaque builds up in the arteries, blocking blood flow. It can lead to a heart attack and can cause permanent damage to the heart muscle.
Over time, CAD can weaken the heart muscle, contributing to heart failure and abnormal heart rhythms, called arrhythmias. If the heart can't pump blood effectively, the lungs, brain and other organs won't work properly and may be damaged or even shut down.
For both men and women, CAD is the leading cause of death around the world. Source: WHO
Heart disease is one of several cardiovascular diseases - disorders of the heart and blood vessels. Other cardiovascular diseases include stroke and high blood pressure.