President Fords historic trip and fall down the steps of Air Force One. 1  People & Blogs. 2  Standard YouTube License.
The bottom number, called the diastolic pressure, is the measurement as the heart relaxes between beats. Normal blood pressure is a systolic pressure of less than 120 millimeters of mercury (mm Hg) and a diastolic pressure of less than 80 mm Hg, or 120/80 mm Hg, according to the American Heart Association (AHA). Having a blood pressure greater than 140/90 mm Hg is considered high blood pressure or hypertension. A blood pressure level between normal and hypertension, is called prehypertension, meaning it is higher than normal, but not high enough to be considered hypertension.
If the two measurements were systolic 110 and diastolic 70, they would be written as 110/70.. Your physician or nurse will describe your blood pressure as one-ten over seventy.. A normal resting blood pressure reading is 120/80.Your systolic pressure (the first and highest number), is the pressure or force the heart places on the walls of your blood vessels as it is working/pumping with each heartbeat.he only way to tell if you have high blood pressure (hypertension) is to have it checked. Occasional high blood pressure is common, especially if you are anxious, nervous, or have recently exercised. Seeing a nurse or physician may cause this response and is referred to as white coat syndrome..