What is a major risk factor for stroke?

Hypertension, or high blood pressure, is a major risk factor for stroke due to its direct impact on the blood vessels. When blood pressure is consistently elevated, it puts additional strain on the arteries, which can lead to damage over time. This damage increases the likelihood of a stroke in several ways: it can cause the arteries to become narrowed or blocked, preventing adequate blood flow to the brain, or it can lead to the rupture of weakened blood vessels, resulting in a hemorrhagic stroke.

While other conditions, such as diabetes and heart disease, also contribute to stroke risk, hypertension is particularly significant because it is often asymptomatic, meaning individuals may not be aware that they have it until serious complications arise. Managing blood pressure through lifestyle changes and medication can significantly reduce the risk of stroke.