What is blood pressure?
Blood pressure is a measurement of the force that the
heart expends to pump the blood through the
circulatory system and vital organs in the body. The
higher the pressure, the harder the heart has to work.
Systolic and diastolic value
Every time the heart beats the blood pressure fluctuates
between a maximum value (systole), where the heart
pumps the blood into the circulatory system (systolic
value), and a minimum value (diastolic value), were the
heart fills up with blood (diastole). The average value is
the average blood pressure.
Blood pressure can be higher than usual if parts of the
circulatory system are restricted, diseased or abnormal
in other ways. High blood pressure can cause damage
to vital organs including the brain and heart.
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