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What is the difference between systolic and diastolic pressure?

2 doctors weighed in
Dr. Tonga Nfor
Internal Medicine - Cardiology

In brief: Heart cycle

The heart is a pump that works in a cycle.
Each heart beat has 2 components: systole when heart contracts to pump blood and diastole when heart relaxes to fill with blood. That is why each blood pressure measurement has 2 numbers: the upper one is systolic blood pressure and lower one is diastolic blood pressure.

In brief: Heart cycle

The heart is a pump that works in a cycle.
Each heart beat has 2 components: systole when heart contracts to pump blood and diastole when heart relaxes to fill with blood. That is why each blood pressure measurement has 2 numbers: the upper one is systolic blood pressure and lower one is diastolic blood pressure.
Dr. Tonga Nfor
Dr. Tonga Nfor
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Dr. Francis Uricchio
Internal Medicine - Cardiology

In brief: Systolic is higher

Systolic blood pressure (the top number) occurs when the heart contracts.
Diastolic blood pressure (the lower number) is the lowest level to which the blood pressure falls between two heart contractions.

In brief: Systolic is higher

Systolic blood pressure (the top number) occurs when the heart contracts.
Diastolic blood pressure (the lower number) is the lowest level to which the blood pressure falls between two heart contractions.
Dr. Francis Uricchio
Dr. Francis Uricchio
Thank
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