Prehypertension: An Overview
Blood pressure is a measure of the pressure inside your blood vessels -- both while the heart is beating and while it is relaxed.
High blood pressure -- also known as
hypertension -- occurs when the pressure within blood vessels is too high. High blood pressure affects 1 in 3 Americans and its impact is well known; it plays a role in the development of serious health problems, such as
heart disease,
stroke, and kidney failure, just to name a few.
A review of the latest research led a panel of experts to come up with another category related to
blood pressure readings. This new category is known as prehypertension, a condition that is between
normal blood pressure and high blood pressure. People with prehypertension are at higher risk for serious health problems than people in the "normal" blood pressure range.
Understanding the Risk of Prehypertension
Blood pressure readings are given in two numbers -- "systolic" over "diastolic." Systolic pressure, the top number in a blood pressure reading, is the force of blood in the arteries as the heart beats. Diastolic pressure, the bottom number, is the force of blood in the arteries as the heart relaxes between beats. Both numbers are important to help your doctor determine your risk of health problems.