Hypertension or high blood pressure is a chronic medical condition in which the blood pressure in the arteries is elevated. normal fluid in narrow, stiff, or clogged blood vessels. Blood pressure measures the force of blood against the walls of the blood vessels. Extra fluid in the body increases the amount of fluid in blood vessels and makes blood pressure higher. Narrow, stiff, or clogged blood vessels also raise blood pressure. Persistent hypertension is one of the risk factors for strokes,...
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