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diastolic blood pressure

diastolic pressure is the pressure of blood against the artery walls between heartbeats, when the heart is relaxed and filling with blood. it is the second or lower number in a blood pressure reading.

for example, if the diastolic pressure is 80 millimetres of mercury (mm hg) and the systolic pressure is 120 mm hg, the blood pressure is recorded as 120/80 and read as "120 over 80."

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this information does not replace the advice of a doctor. healthwise, incorporated, disclaims any warranty or liability for your use of this information. your use of this information means that you agree to the terms of use and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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