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Although blocked blood vessels can cause both coronary heart disease and some types of stroke, stroke is not the same as heart disease.

The heart, blood and blood vessels work together to service the cells of the body.

The heart is about the size of a clenched fist and lies in the middle of your chest, behind and slightly to the left of your breastbone.

A coronary angiogram is the most accurate diagnostic test for a range of heart problems, including coronary heart disease.

Risk factors for heart disease include smoking, diabetes, obesity, family history and age.

Some children acquire a heart problem after an illness in childhood, and this is called an acquired heart defect.

Hypertension, or high blood pressure, can increase your risk of heart attack, kidney failure and stroke.

Smoking is thought to be a factor in age-related macular degeneration and blindness.

Angina attacks can be prompted by exertion or physical exercise, when the hard-working heart muscle requires greater amounts of oxygen.

An enlarged heart isn?t a condition in itself, but a symptom of an underlying problem that is causing the heart to work harder than normal.