[url=https://www.heart.org/en/health-topics/high-blood-pressure/understanding-blood-pressure-readings]Normal or healthy blood pressure[/url] is less than 120/80 millimeters of mercury (mm Hg) for adults. This is a unit of measurement that stems from early blood pressure monitors, which looked at how far your blood pressure could push a column of liquid mercury. For most patients, lower tends to be better. Stage 1 hypertension, which is the lower stage of high blood pressure, begins at 130/80. Stage 2 hypertension, which is the more severe stage of high blood pressure, begins at 140/90. Both numbers are critically important, because every increase of 20 millimeters of mercury in systolic blood pressure, or 10 in diastolic blood pressure, doubles a person’s chances [url=https://doi.org/10.1161/HYP.0000000000000065]of dying from a heart attack or stroke[/url]. [/quote] *This is not meant to diagnose or substitute a consultation with your doctor.