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High blood pressure, or hypertension, rarely has noticeable symptoms. But if untreated, it increases your risk of serious problems such as heart attacks and strokes.
More than one in four adults in the UK have high blood pressure, although many won't realise it.
The only way to find out if your blood pressure is high is to have your blood pressure checked.
This page covers:
Blood pressure is recorded with two numbers. The systolic pressure (higher number) is the force at which your heart pumps blood around your body.
The diastolic pressure (lower number) is the resistance to the blood flow in the blood vessels. They're both measured in millimetres of mercury (mmHg).
As a general guide:
A blood pressure reading between 120/80mmHg and 140/90mmHg could mean you're at risk of developing high blood pressure if you don't take steps to keep your blood pressure under control.
Find out more about what your blood pressure result means.
If your blood pressure is too high, it puts extra strain on your blood vessels, heart and other organs, such as the brain, kidneys and eyes.
Persistent high blood pressure can increase your risk of a number of serious and potentially life-threatening conditions, such as:
If you have high blood pressure, reducing it even a small amount can help lower your risk of these conditions.
The only way of knowing whether you have high blood pressure is to have a blood pressure test.
All adults over 40 are advised to have their blood pressure checked at least every five years. Getting this done is easy and could save your life.
You can get your blood pressure tested at a number of places, including:
You can also check your blood pressure yourself with a home blood pressure monitor.
Read more about getting a blood pressure test.
It's not always clear what causes high blood pressure, but certain things can increase your risk.
You're at an increased risk of high blood pressure if you:
Making healthy lifestyle changes can help reduce your chances of getting high blood pressure and help lower your blood pressure if it's already high.
Read more about the causes of high blood pressure.
The following lifestyle changes can help prevent and lower high blood pressure:
Some people with high blood pressure may also need to take one or more medicines to stop their blood pressure getting too high.
Read more about how to keep your blood pressure healthy.
If you're diagnosed with high blood pressure, your doctor may recommend taking one or more medicines to keep it under control.
These usually need to be taken once a day.
Common blood pressure medications include:
The medication recommended for you will depend on things like how high your blood pressure is and your age.
Read more about how blood pressure is treated.