Often, cardiovascular diseases start with the formation of an atheroma.
An atheroma is a hardened build up of white blood cells, lipids and connective tissue forming a fibrous plaque inside an artery. These build ups can be caused fats and white blood cells clumping under and around damaged areas in the smooth endothelium layer in the artery, which are often caused by high blood pressure.
The plaque can partially block the lumen of an artery which results in the blood flow being restricted, increasing the blood pressure.
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