Blood pressure at or above 140/90 is considered high blood pressure. Conversely, pressures below 100/60 (or in some cases, 90/60) are considered low blood pressure.
According to the National Heart, Lung and Blood Institute, blood pressure is considered to be "high" over 140/90 (unless you have diabetes, which it then should be no higher than 130/80)...
no its high pressure to low pressure cos when the heart pumps the blood, the pressure is most and thicker veins have to be present to accomodate such a high pressure. Gradually the pressure decreases...