人体的血压随心脏的收缩舒张而分为收缩期血压和舒期血压。舒张期血压(俗称低)的正常范围为60~89毫米汞,收缩期血压(俗称高压)的常范围为90~139毫米汞柱。果血压达到140/90毫米汞柱更高,则属高血压了。收缩压与舒张压之差,被为脉压。正常人的脉压在0~40毫米汞柱之间。脉压增大 The body’s blood pressure with systolic and diastolic heart is divided into systolic and systolic blood pressure. Diastolic blood pressure (commonly known as low) the normal range of 60 to 89 mm Hg, systolic blood pressure (commonly known as high pressure) of the range of 90 to 139 mm Hg. If the blood pressure to reach 140/90 mm Hg, is a high blood pressure. The difference between systolic and diastolic blood pressure, was pulse pressure. Normal pulse pressure between 0 to 40 mm Hg. Increased pulse pressure