High blood pressure (hypertension) is a leading driver of heart disease and stroke, and it’s often silent. Many people feel fine even with numbers high enough to damage blood vessels, kidneys, heart, and brain over time. Others ignore subtle cues, such as morning headaches, fatigue, shortness of breath on stairs, or chest pressure chalked up to “stress” or “being out of shape.” This guide explains what to watch for, who’s at higher risk ...