Coronary heart disease (CHD) occurs when the blood supply to the heart is blocked or reduced. This is due to a build-up of fatty substances in the blood vessels that supply the heart: the coronary arteries.
The restriction in blood supply to the heart can cause pain and discomfort (known as angina) and increases the risk of having a heart attack. CHD is the most common cause of death, and of premature death, in the UK, responsible for around 94,000 deaths every year. CHD is slightly more common in men than women; 1 in 5 men and 1 in 7 women die from the disease. The risk of developing CHD increases with age.
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