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Levels of 140 mm Hg or greater systolic or 90 mm Hg or greater diastolic are classified as stage 2 hypertension. If your systolic blood pressure is 120 to 129 mm Hg systolic and your diastolic pressure is less than 80 mm Hg, you have elevated blood pressure.Ī blood pressure level of 130 to 139 mm Hg systolic or 80 to 89 mm Hg diastolic is considered stage 1 hypertension (high blood pressure). If you are not acutely ill, are over 18 years of age and are not taking antihypertensive drugs, a blood pressure reading of less than 120 mm Hg systolic and less than 80 mm Hg diastolic (<120/80) is considered normal. Depending on your activities, your blood pressure may increase or decrease throughout the day. The second number, diastolic blood pressure, is the pressure that exists in the arteries between heartbeats.
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The first number is the systolic blood pressure, the pressure used when the heart beats. 'īlood pressure is typically expressed as two numbers, one over the other, and is measured in millimeters of mercury (noted as mm Hg). About 30 percent of women have high blood pressure. More men than women have hypertension, until women reach menopause, when their risk becomes greater than men's. In addition, being overweight, drinking alcohol excessively (defined as more than two drinks a day for men and one drink a day for women) and taking oral contraceptives may increase blood pressure.Ībout half of Americans with high blood pressure are women. People with other conditions such as diabetes and kidney disease are likely to become hypertensive. Hypertension can occur in both children and adults, but it is more common in adults, particularly African Americans and the elderly. Centers for Disease Control and Prevention. High blood pressure was a primary or contributing cause of death for 410,000 Americans in 2014, according to the U.S. When blood pressure stays elevated over time, however, it is called high blood pressure or hypertension.Īccording to the American Heart Association, about 85.7 million Americans have high blood pressure.
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Normal blood pressure effectively and harmlessly pushes the blood from your heart to your body's organs and muscles so they can receive the oxygen and nutrients they need.īlood pressure is variable-it rises and falls during the day. Left untreated, it can damage your small blood vessels and organs and lead to heart attacks, stroke, kidney failure and circulatory problems.īlood pressure is the amount of force your blood exerts against the walls of your arteries. High blood pressure, or hypertension, occurs when your blood pressure is elevated over time. Blood pressure is the amount of force your blood exerts against the walls of your arteries.