![]() Stage 1 hypertension-systolic 140-159 mmHg or diastolic 90-99 mmHg.Pre-hypertension-systolic 120-139 mmHg or diastolic 80-89 mmHg.Normal blood pressure-systolic It’s easy to tell whether an adult has hypertension, because there’s a standard set of measurements: The bottom number refers to the pressure when the heart is at rest-“between beats” (diastolic). A typical normal blood pressure in an adult is 120/80 mm Hg, or "120 over 80." The top number refers to the pressure when the heart is pushing blood out through the arteries (systolic). ![]() In hypertension, the level of pressure is higher than normal.īlood pressure is measured in millimeters of mercury (mm Hg). Hypertension means “high blood pressure.” This refers to how hard the blood is pushing against the walls of the artery through which it flows-not how quickly it flows. ![]()
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