Blood Pressure (BP)
Your blood pressure consists of two numbers: systolic blood pressure (SBP) and diastolic blood pressure (DBP). The systolic blood pressure refers to the pressure exerted on the wall of your arteries when the heart contracts. The diastolic blood pressure refers to the arterial pressure during the relaxation phase of the heart’s ventricles.
Typical resting blood pressure is 120 / 80 (that is, 120 mm Hg for systolic pressure and 80 mm Hg for diastolic pressure). Consistent resting blood pressure readings at or above 140 / 90 generally constitute high blood pressure, or hypertension.