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The NHS is urging people to assess their risk of a potentially dangerous condition commonly known as a "silent killer".

Hypertension, or high blood pressure, can dramatically heighten a person's chances of experiencing a heart attack or stroke.

High blood pressure represents a widespread problem in the UK, especially amongst elderly people.

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Blood Pressure UK discloses that 31% of men and 26% of women in England are affected by hypertension.

Worryingly, half of these people remain undiagnosed and are not receiving any treatment, reports the Express .

The NHS states: "Check if you're at risk of high blood pressure", explaining: "There are usually no symptoms, so you may not reali

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