High Blood Pressure: Symptoms, Numbers and Prevention
UN Written by Unsa Naqvi Last updated: November 11, 2026 | 15 min read | Health Guide Quick answer Normal blood pressure is below 120/80 mm Hg. High blood pressure starts at 130/80 in American (AHA/ACC 2025) guidelines and at 140/90 in WHO guidelines. One reading is never enough for a diagnosis. Most people have no symptoms , so measuring is the only way to know. Emergency: 180/120 or higher with chest pain, weakness, trouble speaking or a severe headache means go to a hospital immediately. What helps: less salt, more potassium-rich food, the DASH eating pattern, 150 minutes of walking a week, better sleep and, when needed, medicine from your doctor. Table of Contents Most people with high blood pressure feel perfectly fine. There is no pain, no obvious symptom and nothing to warn them. The condition is usually found by accident: a reading at a pharmacy, a routine check-up, a visit to the dentist or a hospital stay for something unrelated. Many people ...