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When your heart beats, it contracts and pushes blood through the arteries to the rest of the body. This force creates pressure on the arteries. This is called systolic blood pressure. A normal systolic blood pressure is below 120.A systolic blood pressure of 120 to 139 means you have prehypertension, or borderline high blood pressure.Even people with prehypertension are at a higher risk of developing heart disease.his is called systolic blood pressure. A normal systolic blood pressure is below 120. A systolic blood pressure of 120 to 139 means you have prehypertension, or borderline high blood pressure. Even people with prehypertension are at a higher risk of developing heart disease.
Systolic blood pressure, the maximum arterial pressure during contraction of the left ventricle of the heart, is an important factor in predicting mortality risk for heart failure patients. Systolic blood pressure is typically the first number in a blood pressure reading; for example, 120 when the blood pressure is reported as 120/80. Heart failure patients with high systolic blood pressures had lower death rates; those with low systolic pressures may have a more advanced disease and a poorer prognosis.