a) The pressure exerted by the blood against the walls of the arteries and veins; it varies during the heartbeat cycle, and according to a persons age, health and physical condition.
the great majority of people who have serious conditions from high blood pressure suffer debilitating illness
b) The measurement of a persons blood pressure, expressed as systolic blood pressure and diastolic blood pressure readings.
The nurse spent all day taking blood pressures at the hospital.
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