Causes of High Blood Pressure
What causes high blood pressure? Blood pressure is the measure of the force of blood pushing against blood vessel walls. The heart pumps blood into blood vessels, which carry the blood throughout the body. High blood pressure, also called hypertension, is dangerous because it makes the heart work harder to pump blood out to the body and contributes to hardening of the arteries, or atherosclerosis, to stroke, kidney disease, and to heart failure. What Is "Normal" Blood Pressure? A blood pressure reading is written like this: 120/80. It's read as "120 over 80." The top number is called the systolic, and bottom number is called the diastolic. The ranges are: Normal: Less than 120 over 80 (120/80) Elevated: 120-129/less than 80 Stage 1 high blood pressure: 130-139/80-89 Stage 2 high blood pressure: 140 and above/90 and above Hypertension crisis: higher than 180/higher than 120 -- See a doctor right away If your blood pressure is above the normal rang...