Blood Pressure Explained: Systolic vs. Diastolic Measurements

Blood pressure has two components:

  • Systolic: Pressure in arteries when the heart contracts and ejects blood.
  • Diastolic: Pressure when the heart relaxes and refills.

Measured in mmHg. Normal: <120/80 mmHg. Hypertension: systolic ≥130 or diastolic ≥80 mmHg.

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