Essential Hypertension (High Blood Pressure).

What is essential hypertension? Hypertension is the term for blood pressure that is consistently higher than normal. Normal blood pressures average 120/80 but can rise and fall with exercise or rest. The pressures are measured in millimeters of mercury, with the upper number (120) being the pressure at the end of the heartbeat (systolic pressure). The lower number (80) is the pressure at the beginning of the heartbeat (diastolic pressure). If your blood pressure is consistently more than 140/90, you have hypertension.

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