![]() ![]() ![]() ![]() The bottom number (80 in our example) is called diastolic blood pressure, which measures the pressure level when the heart is resting. When a heart contracts, it pushes extra blood throughout the circulatory system to reach different parts of the body, creating what is known as systolic pressure. The top number (120 in our example) is called systolic blood pressure, which measures how much pressure the blood exerts against the arteries. An example of a blood pressure reading would be:120/80. These numbers are known as systolic and diastolic blood pressure, and the reading indicates what level of blood pressure a person is experiencing. When checking blood pressure, there are two different numbers, presented like a fraction, that measure when the heart is pumping blood versus when the heart is at rest. ![]()
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