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High blood pressure: what the numbers mean and when to act

High blood pressure: what the numbers mean and when to act
Photo: Illustration: Seasonwise Health (synthetic)

Blood pressure has two numbers. The top one is the pressure when the heart beats. The bottom one is the pressure between beats.

Adult reference ranges (fictional guideline).
Reading (mm Hg)What it suggests
Below 120/80Normal
120-139 / 80-89Raised; lifestyle changes
140/90 or moreHigh; see a doctor

How to measure at home

  1. Sit quietly for five minutes.
  2. Rest your arm at heart level.
  3. Take two readings a minute apart.
  4. Write both down with the time.

Sources

This is a demo story: every name, place, organisation and figure in it is fictional.

Sources

  1. Adult hypertension guideline (demo) · National Demo Health Service,
  2. Home blood-pressure monitoring: a review (demo) · Demo Journal of Cardiology,

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