NIHSeniorHealth: High Blood Pressure

What Is High Blood Pressure? Risk Factors and Prevention Symptoms and Diagnosis Treating High Blood Pressure Frequently Asked Questions MedlinePlus for More Information Printer friendly version		High Blood Pressure Frequently Asked Questions 5. Blood pressure is always given as two numbers. What do they mean? - cont'd Your systolic pressure is the pressure of blood in the vessels when your heart beats. Your diastolic pressure is the pressure between beats when your heart relaxes.

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Last reviewed: 15 September 2006 First published: 15 September 2006 National Institute on Aging, U.S. National Library of Medicine National Institutes of Health, U.S. Department of Health & Human Services Contact us, Accessibility, Copyright, Privacy