Blood pressure is measured by two numbers, the systolic pressure (the higher number) and diastolic pressure (lower).
High blood pressure is considered to be 140/90 millimetres of mercury (mmHg) or higher (or 150/90mmHg or higher if you’re over the age of 80).
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Ideal blood pressure is usually considered to be between 90/60mmHg and 120/80mmHg.
Hypertension can also put you at risk of heart disease, heart failure, peripheral arterial disease, aortic aneurysms and vascular dementia.
Source: Daily Express