What is hypertension (high blood pressure)?

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  1. Hypertension is the medical term for high blood pressure. Blood pressure is the resistance that your blood experiences while flowing through your arteries. When arteries are narrowed, the heart has to work harder to pump more blood. This resuts in high blood pressure.
    Hypertension is the medical term for high blood pressure. Blood pressure is the resistance that your blood experiences while flowing through your arteries. When arteries are narrowed, the heart has to work harder to pump more blood. This resuts in... More
  2. Johns Hopkins Medicine
     

    Blood pressure is measured with two numbers: systolic (the top number in a reading) and diastolic (the bottom number). If your doctor says your blood pressure is 120/80, 120 is the systolic number; 80 is the diastolic number.

    Systolic pressure refers to the force of blood against the walls of the arteries when the heart contracts to pump blood to the rest of the body. Diastolic pressure refers to the pressure within the arteries as the heart relaxes and refills with blood (which explains why the diastolic number is always lower than the systolic measurement).

    Hypertension is defined as systolic pressure greater than 140 mm Hg or diastolic pressure greater than 90 mm Hg.

    Optimal blood pressure is less than 120/80 mm Hg.

    Hypertension is characterized by a persistent increase in the force that the blood exerts upon the artery walls. It is normal for this force to increase with stress or physical exertion, but with hypertension, the patient's blood pressure is high even when they're resting.

    Some 60 million Americans have hypertension, but only about half of them know it, primarily because it so rarely causes any noticeable symptoms and is usually detected only incidentally during a routine physical examination. But left untreated, hypertension promotes atherosclerosis (narrowing of the arteries) and increases the risk of heart attack, stroke, kidney damage and destruction of tiny blood vessels in the eye, which can result in vision loss. For these reasons hypertension is often called "the silent killer."

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    More Related Answers from Johns Hopkins Medicine
    Blood pressure is measured with two numbers: systolic (the top number in a reading) and diastolic (the bottom number). If your doctor says your blood pressure is 120/80, 120 is the systolic number; 80 is the diastolic number. Systolic pressure... More
  3. Dr. William D. Knopf
     
    Hypertension is also called high blood pressure, it is having blood pressure greater than 140 over 90 mmHg (millimeters of mercury). Long-term high blood pressure can damage blood vessels and organs, including the heart, kidneys, eyes, and brain.

    This answer from the National Women's Health Information Center has been reviewed and/or edited by Dr. William D. Knopf.
    More Related Answers from Piedmont Heart Institute
    Hypertension is also called high blood pressure, it is having blood pressure greater than 140 over 90 mmHg (millimeters of mercury). Long-term high blood pressure can damage blood vessels and organs, including the heart, kidneys, eyes, and... More
  4. American Heart Association
     

    High blood pressure, also called hypertension, is a chronic increase in blood pressure above the normal range. Blood pressure is the pressure of the blood against the walls of the arteries. Optimal blood pressure is less than 120/80 mm Hg. High blood pressure is a condition in which blood pressure levels are consistently above the normal range. Blood pressures of 120–139/80–89 mm Hg are considered pre-hypertension. People with this condition are likely to develop high blood pressure unless they take steps to manage their numbers. Blood pressure is considered high if it is 140/90 mm Hg or higher. High blood pressure increases the risk for heart attack, angina, stroke, kidney failure, and peripheral artery disease. High blood pressure may also increase the risk of developing fatty deposits in arteries, a condition called atherosclerosis. The risk of heart failure also increases due to the increased workload that high blood pressure places on the heart.

    More Related Answers from American Heart Association
    High blood pressure, also called hypertension, is a chronic increase in blood pressure above the normal range. Blood pressure is the pressure of the blood against the walls of the arteries. Optimal blood pressure is less than 120/80 mm Hg. High... More
  5. Dr. Shailesh Malla
     
    Hypertension is the medical term for high blood pressure.   The Optimum is 120/80 mm Hg. When arteries are stiff, the heart has to work harder to pump blood. This resuts in a blood pressure that is higher than normal and this is termed Hypertension.
    More Related Answers from Piedmont Heart Institute
    Hypertension is the medical term for high blood pressure.   The Optimum is 120/80 mm Hg. When arteries are stiff, the heart has to work harder to pump blood. This resuts in a blood pressure that is higher than normal and this is termed... More
  6.  Emilia Klapp
     
    Emilia Klapp answered:
    Hypertension is the medical term for high blood pressure. Blood pressure is how forcefully the blood bangs against the walls of the arteries. With high blood pressure, the heart pounds faster than it should to send nutrients and oxygen through the blood vessels to the cells. Continuous high blood pressure makes the heart work harder because the artery walls thicken, which reduces blood flow.
    More Related Answers from Emilia Klapp
    Hypertension is the medical term for high blood pressure. Blood pressure is how forcefully the blood bangs against the walls of the arteries. With high blood pressure, the heart pounds faster than it should to send nutrients and oxygen through the... More
  7. Dr. Michael Rakotz
     

    Learn more from Dr. Michael Rakotz on behalf of NorthShore University about hypertension.





    More Related Answers from NorthShore University HealthSystem
    Learn more from Dr. Michael Rakotz on behalf of NorthShore University about hypertension. More
  8. Carolinas HealthCare System
     
    Hypertension is the medical term for high blood pressure. It does not refer to being tense, nervous, or hyperactive. You can be calm and relaxed, and still have high blood pressure. A single, elevated blood pressure reading does not mean that you have hypertension, but it is a sign that further observation might be required.
    More Related Answers from Carolinas HealthCare System
    Hypertension is the medical term for high blood pressure. It does not refer to being tense, nervous, or hyperactive. You can be calm and relaxed, and still have high blood pressure. A single, elevated blood pressure reading does not mean that you... More
  9. American Diabetes Association
     
    Hypertension is a condition present when blood flows through the blood vessels with a force greater than normal. It is also called high blood pressure. Hypertension can strain the heart, damage blood vessels, and increase the risk of heart attack, stroke, kidney problems, and death.
    More Related Answers from American Diabetes Association
    Hypertension is a condition present when blood flows through the blood vessels with a force greater than normal. It is also called high blood pressure. Hypertension can strain the heart, damage blood vessels, and increase the risk of heart... More
  10. Healthwise
     
    Healthwise answered:

    High blood pressure, or hypertension, is a condition in which the force of blood against artery walls is too strong. Over time, high blood pressure can damage the arteries, heart, and kidneys and can lead to heart disease and stroke.

    High blood pressure can be treated effectively with lifestyle changes and medicines that can reduce the risk of complications.

    Blood pressure readings consist of an upper number and a lower number (such as 120 over 90 or 120/90). The upper number is systolic blood pressure. The lower number is diastolic blood pressure. Blood pressure readings are measured in units called millimeters of mercury (mm Hg). Normal blood pressure is 119 mm Hg systolic over 79 mm Hg diastolic or below.

    A person has high blood pressure (hypertension) when either or both of the following are present:

    • The top number (systolic) is 140 mm Hg or higher.
    • The bottom number (diastolic) is 90 mm Hg or higher.
    More Related Answers from Healthwise
    High blood pressure, or hypertension, is a condition in which the force of blood against artery walls is too strong. Over time, high blood pressure can damage the arteries, heart, and kidneys and can lead to heart disease and stroke. High blood... More
  11. Dr. Marcus L. Williams
     

    Hypertension is the medical term for someone who has a persistently elevated blood pressure. Blood pressure is generated by the heart as it pumps blood through the circulatory system. Because the cycle of a heart beats includes contraction (squeezing) and relaxation (resting) of the heart muscle, two pressures are measured by the blood pressure cuff. The first is the systolic pressure which the top number generated during the peak contraction of the heart and the second is the diastolic or bottom number generated when the heart relaxes.

    Having adequate blood pressure is vital to life. Because of the various stresses the body experiences (i.e. running, standing, eating or sleeping) blood pressure constantly changes to adapt to the new environment. Without this rapid response humans could not function. So if you were to plot out blood pressure measurement over time in an individual it would look like the graph of the stock market with a saw tooth jagged progression. Therefore it is the averages or mean blood pressure overtime that best predicts risk and defines hypertension (high blood pressure).

    So generally if two or more resting blood pressures done when the person has sat for 10 minutes and is relaxed is elevated than by definition the person has hypertension. Hypertension for most people is defined as a systolic blood pressure greater than or equal to 140 mmHg and/or a diastolic blood pressure great than or equal to 90 mmHg.

    However the risk of hypertension follows a continuum. This means that even within the normal recommended ranges the high normal blood pressures have more strokes and heart attacks than the lower range. This observation has led experts to set the target for hypertension lower for diabetics and patients with renal disease.

    If you are concern about your risk of hypertension and where your target numbers should be you should consult your physician or cardiologist. You can also go to my website and click on the ABC or the AHA icon to learn more. Thank you.

    More Related Answers from Dr. Marcus L. Williams
    Hypertension is the medical term for someone who has a persistently elevated blood pressure. Blood pressure is generated by the heart as it pumps blood through the circulatory system. Because the cycle of a heart beats includes contraction... More
  12. Dr. Mehrdad Kevin Ariani
     

    Hypertension is a term used to describe High Blood Pressure.

    Blood pressure readings are usually given as two numbers -- for example, 120 over 80 (written as 120/80 mmHg). One or both of these numbers can be too high.

    The top number is called the systolic blood pressure, and the bottom number is called the diastolic blood pressure.

    • Normal blood pressure is when your blood pressure is lower than 120/80 mmHg most of the time.
    • High blood pressure (hypertension) is when your blood pressure is 140/90 mmHg or above most of the time.
    • If your blood pressure numbers are 120/80 or higher, but below 140/90, it is called pre-hypertension.
    More Related Answers from Dr. Mehrdad Kevin Ariani
    Hypertension is a term used to describe High Blood Pressure. Blood pressure readings are usually given as two numbers -- for example, 120 over 80 (written as 120/80 mmHg). One or both of these numbers can be too high. The top number is called the... More
  13. HealthyWomen
     
    HealthyWomen answered:
    Blood pressure above 140 mm Hg systolic and/or 90 mm Hg diastolic is considered hypertensive. There are 2 stages of hypertension. Stage 1 hypertension is systolic blood pressure between 140 to 159 mm Hg and/or diastolic blood pressure 90 to 99 mm Hg. Stage 2 hypertension is blood pressure greater than 160 mm Hg systolic and/or 100 mm Hg diastolic. When systolic and diastolic pressures fall into different categories, your healthcare professional should select the higher category to classify your blood pressure. For example, 160/80 mm Hg would be considered stage 2 hypertension.

    If you are hypertensive and have begun receiving initial medication therapy, you will probably need to return for follow-up and adjustment of medications once a month until your blood pressure goal is reached. More frequent visits may be necessary for those with stage 2 hypertension.
    More Related Answers from HealthyWomen
    Blood pressure above 140 mm Hg systolic and/or 90 mm Hg diastolic is considered hypertensive. There are 2 stages of hypertension. Stage 1 hypertension is systolic blood pressure between 140 to 159 mm Hg and/or diastolic blood pressure 90 to... More
  14. Dr. Sameer   Sayeed
     
    Dr. Sameer Sayeed answered:
    Hypertension or high blood pressure is the pressure that blood is being pumped at through the body and the amount of pressure being placed on the arteries and organs of the body. Since the blood is being pumped around the body at this pressure, this high blood pressure is being placed on organs such as the kidneys, heart, brain as well as the major arteries supplying these organs, as well as the arteries providing blood throughout the body. This high blood pressure, as a result, can cause damage to organs as well as blood vessels through shear stress and just the high pressure itself. Such damage can lead to abnormalities in the walls of the blood vessels eventually leading to atherosclerosis and blockages in the blood vessels. Damage to organs can result in kidney failure, heart failure, heart attacks and strokes as well as poor blood circulation to the legs.
    More Related Answers from Dr. Sameer Sayeed
    Hypertension or high blood pressure is the pressure that blood is being pumped at through the body and the amount of pressure being placed on the arteries and organs of the body. Since the blood is being pumped around the body at this pressure, this... More
  15. Dr. Nassir Azimi
     
    Dr. Nassir Azimi answered:
    Hypertension is elevated blood pressure measured on two separate occassions. It is classified as primary or secondary.  Primary hypertension is also termed essential hypertension.  Secondary hypertension is due to other factors such as hormonal excess, kidney artery disease, etc. 
    More Related Answers from Dr. Nassir Azimi
    Hypertension is elevated blood pressure measured on two separate occassions. It is classified as primary or secondary.  Primary hypertension is also termed essential hypertension.  Secondary hypertension is due to other factors such as... More