One or both of these numbers can be too high. For example, 120 over 80 (written as 120/80 mm Hg). The bottom number is called diastolic blood pressure. The top number is called systolic blood pressure. These include heart disease, stroke, kidney failure, eye problems, and other health issues.īlood pressure readings are given as two numbers. Untreated high blood pressure can lead to many medical problems.
Hypertension is the medical term used to describe high blood pressure. Blood pressure is a measurement of the force exerted against the walls of your arteries as your heart pumps blood to your body.