What is blood pressure?
Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is called diastolic pressure.
Your blood pressure reading uses these two numbers. Usually the systolic number comes before or above the diastolic number. For example, 120/80 means a systolic of 120 and a diastolic of 80.
How is high blood pressure diagnosed?
High blood pressure usually has no symptoms. So the only way to find out if you have it is to get regular blood pressure checks from your health care provider. Your provider will use a gauge, a stethoscope or electronic sensor, and a blood pressure cuff. He or she will take two or more readings at separate appointments before making a diagnosis.
|Blood Pressure Category||Systolic Blood Pressure||Diastolic Blood Pressure|
|Normal||Less than 120||and||Less than 80|
|High Blood Pressure (no other heart risk factors)||140 or higher||or||90 or higher|
|High Blood Pressure (with other heart risk factors, according to some providers)||130 or higher||or||80 or higher|
|Dangerously high blood pressure - seek medical care right away||180 or higher||and||120 or higher|
For children and teens, the health care provider compares the blood pressure reading to what is normal for other kids who are the same age, height, and gender.
People with diabetes or chronic kidney disease should keep their blood pressure below 130/80.
Who is at risk for high blood pressure?
Anyone can develop high blood pressure, but there are certain factors that can increase your risk:
- Age - Blood pressure tends to rise with age
- Race/Ethnicity - High blood pressure is more common in African American adults
- Weight - People who are overweight or have obesity are more likely to develop high blood pressure
- Sex - Before age 55, men are more likely than women to develop high blood pressure. After age 55, women are more likely than men to develop it.
- Lifestyle - Certain lifestyle habits can raise your risk for high blood pressure, such as eating too much sodium (salt) or not enough potassium, lack of exercise, drinking too much alcohol, and smoking.
- Family history - A family history of high blood pressure raises the risk of developing high blood pressure
How can I prevent high blood pressure?
You can help prevent high blood pressure by having a healthy lifestyle. This means
- Eating a healthy diet. To help manage your blood pressure, you should limit the amount of sodium (salt) that you eat and increase the amount of potassium in your diet. It is also important to eat foods that are lower in fat, as well as plenty of fruits, vegetables, and whole grains. The DASH eating plan is an example of an eating plan that can help you to lower your blood pressure.
- Getting regular exercise. Exercise can help you maintain a healthy weight and lower your blood pressure. You should try to get moderate-intensity aerobic exercise at least 2 and a half hours per week, or vigorous-intensity aerobic exercise for 1 hour and 15 minutes per week. Aerobic exercise, such as brisk walking, is any exercise in which your heart beats harder and you use more oxygen than usual.
- Being at a healthy weight. Being overweight or having obesity increases your risk for high blood pressure. Maintaining a healthy weight can help you control high blood pressure and reduce your risk for other health problems.
- Limiting alcohol. Drinking too much alcohol can raise your blood pressure. It also adds extra calories, which may cause weight gain. Men should have no more than two drinks per day, and women only one.
- Not smoking. Cigarette smoking raises your blood pressure and puts you at higher risk for heart attack and stroke. If you do not smoke, do not start. If you do smoke, talk to your health care provider for help in finding the best way for you to quit.
- Managing stress. Learning how to relax and manage stress can improve your emotional and physical health and lower high blood pressure. Stress management techniques include exercising, listening to music, focusing on something calm or peaceful, and meditating.
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