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Blood Pressure Info.

Q What is the difference between systolic and diastolic blood pressure?

A Blood pressure is the force of blood pushing against the walls of your arteries. It is measured by two numbers called systolic blood pressure and diastolic blood pressure and is measured in millimeters of mercury (mm Hg). For example, healthy blood pressure is measured as levels below 120 mm Hg systolic blood pressure over 80 mm Hg diastolic blood pressure (120 mm Hg/80 mm Hg).

Systolic blood pressure is a measure of how much pressure your heart is exerting against your artery walls when your heart is beating. Diastolic blood pressure is how much pressure your blood is exerting against your artery walls when the heart is resting between beats. Both numbers are important in determining your overall blood pressure and measure how hard your heart has to work to circulate blood.

Some people remember the acronym S.D. (for South Dakota) to remind them that "s" comes first for systolic, and "d" comes second for diastolic when measuring blood pressure.

--Tamara Schryver, PhD, RD

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Caption: Blood pressure is an important indicator for overall health.

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Author:Schryver, Tamara
Publication:Environmental Nutrition
Date:Sep 1, 2019
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