What is high blood pressure (Hypertension)?

High blood pressure is a common condition in which the long-term force of the blood against your artery walls is high enough that it may eventually cause health problems, such as heart disease.

What is blood pressure?

When the heart pumps blood through the arteries, the blood puts pressure on the artery walls. This is known as blood pressure.

Blood pressure is the pressure of blood pushing against the walls of your arteries. Arteries carry blood from your heart to other parts of your body.

Your blood pressure normally rises and falls throughout the day.

What do blood pressure numbers mean?

Blood pressure is measured using two numbers:

The first number, called systolic blood pressure, measures the pressure in your arteries when your heart beats.

The second number, called diastolic blood pressure, measures the pressure in your arteries when your heart rests between beats.

If the measurement reads 120 systolic and 80 diastolic, you would say, “120 over 80,” or write, “120/80 mmHg.”

What are normal blood pressure numbers?

A normal blood pressure level is less than 120/80 mmHg

What is high blood pressure (hypertension)?

High blood pressure, also called hypertension, is blood pressure that is higher than normal. Your blood pressure changes throughout the day based on your activities. Having blood pressure measures consistently above normal may result in a diagnosis of high blood pressure (or hypertension).

The higher your blood pressure levels, the more risk you have for other health problems, such as heart disease, heart attack, and stroke.

Your health care team can diagnose high blood pressure and make treatment decisions by reviewing your systolic and diastolic blood pressure levels and comparing them to levels found in certain guidelines.

The guidelines used to diagnose high blood pressure may differ from health care professional to health care professional:

Some health care professionals diagnose patients with high blood pressure if their blood pressure is consistently 140/90 mm Hg or higher.2 This limit is based on a guideline released in 2003, as seen in the table below.

Other health care professionals diagnose patients with high blood pressure if their blood pressure is consistently 130/80 mm Hg or higher.1 This limit is based on a guideline released in 2017, as seen in the table below.

How do I know if I have high blood pressure?

There’s only one way to know if you have high blood pressure: Have a doctor or other health professional measure it. Measuring your blood pressure is quick and painless.

High blood pressure is called the “silent killer” because it usually has no warning signs or symptoms, and many people do not know they have it.

What can I do to prevent or manage high blood pressure?

Many people with high blood pressure can lower their blood pressure into a healthy range or keep their numbers in a healthy range by making lifestyle changes. Talk with your health care team about

  • Getting at least 150 minutes of physical activity each week (about 30 minutes a day, 5 days a week)
  • Not smoking
  • Eating a healthy diet, including limiting sodium (salt) and alcohol
  • Keeping a healthy weight
  • Managing stress

Learn more about ways to manage and prevent high blood pressure.

In addition to making positive lifestyle changes, some people with high blood pressure need to take medicine to manage their blood pressure. Learn more about medicines for high blood pressure.

By taking action to lower your blood pressure, you can help protect yourself against heart disease and stroke, also sometimes called cardiovascular disease (CVD).

Source: CDC

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