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Understanding Your Blood Pressure Numbers: A Simple Guid

Blood pressure is the force of blood pushing against your artery walls. It is written as two numbers: systolic pressure over diastolic pressure.

What the two numbers mean

Systolic pressure is the top number and reflects pressure when the heart contracts. Diastolic pressure is the bottom number and reflects pressure when the heart relaxes between beats.

Why trends matter

One reading does not always tell the whole story. Technique, stress, pain, caffeine, exercise, medications, and timing can affect a reading. Recording several properly measured readings can give your healthcare professional more useful information.

Healthy habits that support blood pressure

Educational use only: This article provides general health education and does not replace individualized medical advice, diagnosis, or treatment.