Only one of your numbers needs to be higher than it should be to be diagnosed with high blood pressure, and only one needs to be lower than it should be to be diagnosed with low blood pressure. The video below explains how your blood pressure numbers are linked to the risk of stroke and other disease. Low blood pressure usually isn’t a problem, but it can sometimes make you feel faint or dizzy or could be a sign of another health problem.

90/60mmHg or lower – you may have low blood pressure.

Following a healthy lifestyle will help you to keep it in the healthy range. At this level you have a much lower risk of heart disease and stroke.

90/60mmHg up to 120/80mmHg – ideal blood pressureĪlso called normal blood pressure.

See how you can make healthy changes to your lifestyle to lower it. This is not high blood pressure, but it is a little higher than it should be and means you could go on to develop high blood pressure.

120/80mmHg up to 140/90mmHg – pre-high blood pressureĪlso called high-normal blood pressure.

They might prescribe medications and advise you to make changes to your lifestyle to bring your blood pressure down. This is the point where your risk of serious health problems goes up.

Most doctors use 140/90mmHg as the cut off for point for diagnosing high blood pressure (hypertension). 140/90mmHg or over – you may have high blood pressure.The chart is suitable for adults of any age, as the cut-off point for diagnosing high blood pressure doesn’t change with age. Once you know your numbers, you can use the blood pressure chart to see what they mean and if your blood pressure is in the healthy range. This video explains more about systolic and diastolic blood pressure. If the first number is 120 and the second number is 80, this would be written as 120/80mmHg, and you’d call it ‘120 over 80’. The second number, or bottom number, is the lowest level your blood pressure reaches as your heart relaxes between beats.īlood pressure is measured in millimetres of mercury (mmHg). This is the highest level your blood pressure reaches when your heart beats, forcing blood around your body. When you have your blood pressure measured, you will be given two numbers, a top number and a bottom number.

What does a blood pressure reading look like? Find out how to understand blood pressure readings and use our blood pressure chart to see how healthy your blood pressure is.

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