Hypertension is another name for high blood pressure. It’s a disease that can lead to severe complications and increases the risk of heart disease, stroke, and death. Hypertension is the single most important risk factor for stroke. It causes about 50 per cent of ischemic strokes and also increases the risk of haemorrhagic stroke. The increase in cardiovascular risk has primarily been described in terms of elevated systolic pressure in those over age 60 years and elevation in diastolic pressure in younger individuals.