How does hypertension affect the risk of stroke?

Hypertension is a well-established risk factor for stroke and significantly increases the risk of both ischemic and hemorrhagic types. Chronic high blood pressure places extra strain on blood vessel walls, making them more susceptible to damage, a condition that can lead to both atherosclerosis and major vascular events. In the case of ischemic stroke, damaged arteries can become narrowed or blocked, impeding blood flow to the brain.

In hemorrhagic stroke, the risk is elevated through the potential weakening of blood vessel walls due to high pressure, which may lead to rupture. This role of hypertension highlights its importance in stroke prevention and management, reinforcing the need for effective blood pressure control as part of comprehensive stroke care to reduce the incidence of both types of stroke.