Facts about high blood pressure

High blood pressure is a condition in which the pressure, or tension,
that blood exerts on the walls of blood vessels goes up and stays high,
which can damage the blood vessels, the heart, and other organs.

It is estimated that more than 50 million Americans have high blood
pressure.

High blood pressure is one of the most serious health problems in the
United States; yet, because high blood pressure has no symptoms,
millions of people do not even know they have it.

As many as one in four adults in the United States has high blood pressure.

High blood pressure affects people of all ages, racial and ethnic groups,
and walks of life.

Doctors do not know what causes high blood pressure in 90 to 95 percent
of people who have it.

High blood pressure is one of the most important risk factors for coronary
heart disease.

High blood pressure is the most important risk factor for stroke, which is
the third leading cause of death in the United States .

High blood pressure is a common cause of heart failure, the leading cause
of death in the United States

High blood pressure is a common cause of kidney disease.

What Factors Affect Blood Pressure?

Blood pumped through blood vessels is always under pressure, much
like water that is pumped through a garden hose. This pressure is highest
in the arteries closest to the heart and gradually decreases as the blood
travels around the body.

Blood keeps moving around the body because there are differences in
pressure in the blood vessels. Blood flows from higher-pressure areas to
lower-pressure areas until it eventually returns to the heart