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What
is High Blood Pressure?
HIGH BLOOD PRESSURE, also called hypertension,
means the pressure in your arteries is consistently above the normal
range. Blood pressure is the force of blood pushing against blood
vessel walls. It's written as two numbers, such as 122/78 mm Hg. The
top, systolic number is the pressure when the heart beats. The bottom,
diastolic number is the pressure when the heart is at rest. High blood
pressure is a consistently elevated pressure of 140 systolic or higher
and/or 90 diastolic or higher.
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Facts
Anyone can develop high blood pressure, but some people are more likely
to develop it than others. For example, high blood pressure is more
common--it develops earlier and is more severe--in African-Americans
than in Whites.
In the early and middle adult years, men have high blood pressure
more often than women. But as men and women age, the reverse is true.
More women after menopause have high blood pressure than men of the
same age. And the number of both men and women with high blood
pressure increases rapidly in older age groups. More than half of
all Americans over age 65 have high blood pressure. And older African-American
women who live in the Southeast are more likely to have high blood
pressure than those in other regions of the United States.
In fact, the southeastern states have some of the highest rates of
death from stroke. High blood pressure is the key risk factor for
stroke. Other risk factors include cigarette smoking and overweight.
These 11 states--Alabama, Arkansas, Georgia, Indiana, Kentucky, Louisiana,
Mississippi, North Carolina, South Carolina, Tennessee, and Virginia--have
such high rates of stroke among persons of all races and in both sexes
that they are called the "Stroke Belt States".
Finally, heredity can cause some families, more likely than others,
to get high blood pressure. If your parents or grandparents had high
blood pressure, your risk may be increased. While it is mainly a disease
of adults, high blood pressure can occur in children as well. Even
if everyone is healthy, be sure you and your family get your blood
pressure checked. Remember, high blood pressure has no signs or symptoms.
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Quiz
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About Hypertension
Take a short
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