Science Snapshot: How Silent Risk Factors Damage Brain Vessels

Understanding the root biological causes of stroke helps you implement effective lifestyle safeguards. High blood pressure, or hypertension, stands as the single most critical modifiable risk factor for cerebrovascular disease. As vascular walls withstand continuous elevated pressure, delicate brain arteries become thick, rigid, and susceptible to blockage.

Public health statistics show that among adults aged 65 to 74, 72.0 percent of men and 75.1 percent of women have high blood pressure; for those 75 and older, prevalence rises above 80 percent. Over time, high pressure damages the endothelial lining of arteries, accelerating plaque buildup. Research from the National Institute of Neurological Disorders and Stroke highlights that controlling hypertension significantly reduces overall stroke incidence.