6 doctors weighed in:

What are systolic blood pressure and diastolic blood pressure?

6 doctors weighed in
Dr. Louis Grenzer
Internal Medicine - Cardiology
4 doctors agree

In brief: See below

Systolic is the pressure in the arteries when the heart contracts.
Diastolic is the pressure when the heart relaxes.

In brief: See below

Systolic is the pressure in the arteries when the heart contracts.
Diastolic is the pressure when the heart relaxes.
Dr. Louis Grenzer
Dr. Louis Grenzer
Thank
Dr. Bennett Werner
Internal Medicine - Cardiology

In brief: 120/80

The upper number is the systolic and is the pressure generated when the heart contracts.
The lower number (it's not a fraction, just expressed with a diagonal line between them) is the diastolic and represents residual pressure in the arterial tree when the heart is resting/filling. Both are important for health. Normal is <135/<85.

In brief: 120/80

The upper number is the systolic and is the pressure generated when the heart contracts.
The lower number (it's not a fraction, just expressed with a diagonal line between them) is the diastolic and represents residual pressure in the arterial tree when the heart is resting/filling. Both are important for health. Normal is <135/<85.
Dr. Bennett Werner
Dr. Bennett Werner
Thank
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