Blood pressure is the measurement of pressure in the arteries between heartbeats. Normal blood pressure reading is 120 over 80 and less than 140 over 90. It is of two numbers. One is systolic blood pressure which is the highest pressure measured when your heart beats and pushes the blood round your body. Another one is diastolic blood pressure which is the lowest pressure measured when your heart relaxes between heartbeats. 120 over 80 is the ideal blood pressure for people wishing to have good health.
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