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Coronary Heart Disease

Medically reviewed by P. Thornton, DipPharm. Last updated on Jan 24, 2018.

Heart disease is an umbrella term used for describing any disorder that affects the heart's ability to function normally. The most common cause of heart disease is narrowing or blockage of the coronary arteries that supply blood to the heart itself (this is known as coronary heart disease or coronary artery disease).

Heart disease can also be present at birth or caused by hypertension, abnormal functioning of the heart valves, irregularities in the heart's electrical rhythm, or weakening of its pumping action caused by infections or toxins.


An arrhythmia is any disorder of your heart rate or heart rhythm, such as beating too fast (tachycardia), too slow (bradycardia), or irregularly.

Heart Failure

Heart failure, also called congestive heart failure, is a life-threatening condition in which the heart can no longer pump enough blood to the rest of the body.


Angina is a specific type of chest discomfort caused by inadequate blood flow through the blood vessels (coronary vessels) of the heart muscle (myocardium).

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.