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High blood pressure, also known as hypertension, is the force of blood pushing against blood vessel walls. The heart pumps blood into the arteries (blood vessels), which carry the blood throughout the body. Blood pressure is determined by the amount of blood your heart pumps and the amount of resistance to blood flow in your arteries. The more blood your heart pumps and the narrower your arteries, the higher your blood pressure. **High blood pressure is one of the most common worldwide diseases afflicting humans. ** It can be very dangergous and learn about high blood pressure in this wiki.
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Did you know that high blood pressure is also the root of disease that kills more Americans than any other? According to recent research, about one in three U.S. adults has high blood pressure, but because there are no symptoms, nearly one-third of these people don't know they have it. In fact, many people have high blood pressure for years without knowing it. This is why high blood pressure is often called the "**silent killer** ." The only way to tell if you have high blood pressure is to have your blood pressure checked. There are several categories of blood pressure, including:
 * **Normal:** Less than systolic 120/ diastolic 80
 * **Prehypertension:** systolic 120-139/ diastolic 80-89
 * **Stage 1 high blood pressure:** systolic 140-159/ diastolic 90-99
 * **Stage 2 high blood pressure:** systolic 160 and above/ diastolic 100 and above

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