- What Is It?
- What is high blood pressure? What is normal blood pressure?
- Chart
- What do blood pressure readings mean? (blood pressure readings chart)
- Signs/Symptoms
- What are the signs and symptoms of high blood pressure?
- Causes
- What causes high blood pressure?
- Measurement
- How is blood pressure measured?
- Diagnosis
- How is high blood pressure diagnosed?
- Treatment
- What is the treatment for high blood pressure?
- What alternative therapies help lower and mangage high blood pressure?
- Diet Changes
- What changes in diet help lower blood pressure naturally?
- Exercise
- Can exercise help lower high blood pressure?
- Center
- How to Lower High Blood Pressure (Hypertension) Center
- Comments
- Patient Comments: High Blood Pressure - Diet
- Patient Comments: High Blood Pressure - Treatment
- Patient Comments: High Blood Pressure - Symptoms
- Patient Comments: High Blood Pressure - Readings
- Patient Comments: High Blood Pressure - Causes
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The doctor holding a sign asking "have you checked your blood pressure lately?" Normal blood pressure is below 120/80. Source: iStock
What is high blood pressure? What is normal blood pressure?
- High blood pressure (hypertension) is defined as high pressure (tension) in the arteries, which are the vessels that carry blood from the heart to the rest of the body.
- Blood pressure readings are given as two numbers:
- The systolic blood pressure (the top number) equals the pressure in the arteries as the heart contracts.
- The diastolic pressure (the bottom number) is the pressure in the arteries as the heart relaxes.
- Normal blood pressure is below 120/80.
- In 2017, the American College of Cardiology released new guidelines for high blood pressure.
- Blood pressure between 120/80 and 129/80 is elevated blood pressure, and a blood pressure of 130/80 or above is considered high.
- The American Academy of Cardiology defines blood pressure ranges as:
- Hypertension stage 1 is 130-139 or 80-89 mm Hg, and hypertension stage 2 is 140 or higher, or 90 mm Hg or higher.
- Complications of high blood pressure include heart disease, kidney (renal) disease, hardening of the arteries (atherosclerosis or arteriosclerosis), eye damage, and stroke (brain damage).
- Hypertension is a major public health problem. With the new guidelines for defining high blood presure, The American Heart Association estimates high blood pressure affects nearly half of all adults (46%) in the United States.
Normal Blood Pressure By Age
What is normal blood pressure according to age?
The blood pressure is the pressure of the blood within the arteries. It is produced primarily by the contraction of the heart muscle. Its measurement is recorded by two numbers. The first (systolic pressure) is measured after the heart contracts and is highest. The second (diastolic pressure) is measured before the heart contracts and the lowest. A blood pressure cuff is used to measure the pressure. Elevation of blood pressure is called "hypertension".
The chart in the article shows normal blood pressure according to age both male and female. Diastolic blood pressure (DBP) and Systolic Blood Pressure (SBP) are included in the chart.
Blood pressure chart showing the classifications of systolic and diastolic blood pressure levels. Source: MedicineNet
What do blood pressure readings mean? (blood pressure readings chart)
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Blood pressure readings can vary in a single person throughout the day depending on the situation. Factors such as stress, anxiety, foods are eaten (caffeine or salt intake), smoking or exercise can cause pressure to rise.
The American Heart Association defines normal blood pressure as less than 120/80. Elevated blood pressure ranges between 120/80 and 129/80, and high blood pressure is 130/80 and higher. In pregnancy, normal blood pressure should be below 120/80.
If your blood pressure reaches the high range, you should see your doctor about lifestyle changes, and possibly medication especially if you have other risk factors, such as diabetes or heart disease.
High blood pressure (for example, 180/110 or higher) may indicate an emergency situation. If this high blood pressure is associated with chest pain, shortness of breath, headache, dizziness, or back or abdominal pain, seek medical care immediately. If you are experiencing no associated symptoms with a high blood pressure reading such as this, re-check it again within a few minutes and contact your doctor or go to an emergency room if it is still high.
If your blood pressure is lower than about 100/60 you may have low blood pressure, depending on the associated symptoms. If you are unsure, check with your doctor.
High blood pressure symptoms include headache, dizziness, shortness of breath, blurred vision, nausea, and the feeling of pulsations in the neck or head. Source: iStock
High salt intake can cause hypertension. Source: iStock
What causes high blood pressure?
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The causes of hypertension are multifactorial, meaning there are several factors whose combined effects produce hypertension.
- High salt intake or salt sensitivity: This occurs in certain populations such as the elderly, African Americans, people who are obese, or people with kidney (renal) problems.
- Genetic predisposition to high blood pressure: People who have one or two parents with hypertension have high blood pressure incidence about twice as high as the general population.
- A particular abnormality of the arteries, which results in an increased resistance (stiffness or lack of elasticity) in the tiny arteries (arterioles): This increased peripheral arteriolar stiffness develops in individuals who are also obese, do not exercise, have a high salt intake, and are older.
QUESTION
High blood pressure means that blood has difficulty reaching the heart. See Answer 
The doctor checks the blood pressure of a woman. Source: Getty Images/Stockbyte
How is blood pressure measured?
Blood pressure is measured by a blood pressure cuff (sphygmomanometer). The blood pressure cuff consists of an air pump, a pressure gauge, and a rubber cuff. The instrument measures the blood pressure in units called millimeters of mercury (mm Hg).
The cuff is placed around the upper arm and inflated with an air pump to a pressure that blocks the flow of blood in the main artery that travels through the arm. The arm is held at the side of the body at the level of the heart, and the pressure of the cuff is gradually released. As the pressure decreases, a health practitioner listens with a stethoscope over the artery at the front of the elbow or an electronic machine senses the pulsation. The pressure at which the practitioner (or machine) first hears a pulsation from the artery is the systolic pressure (the top number). As the cuff pressure decreases further, the pressure at which the pulsation finally stops is the diastolic pressure (the bottom number).
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A patient getting blood pressure measured. Source: iStock
How is high blood pressure diagnosed?
To make an official diagnosis of high blood pressure you will need to see your doctor. Often your blood pressure will be checked on at least two different visits, at different times of the day. Your doctor may ask you to keep a blood pressure log for a short time in order to see your overall blood pressure trends. If your blood pressure is consistently over 134/80, your doctor will work with you to determine the best regimen for treating your high blood pressure.
IMAGES
High Blood Pressure (Hypertension) Signs, Causes, Diet, and Treatment See a medical illustration of high blood pressure (HBP) plus our entire medical gallery of human anatomy and physiology See Images 
The collage of treatments for high blood pressure includes quit smoking, lose weight, avoid alcohol and medications. Source: iStock, Getty Images/Blend Images/
What is the treatment for high blood pressure?
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Blood pressure is caused by many different factors, so there are many different treatments. The goal of treating high blood pressure is to keep the blood pressure below 134/80.
Treatments for high blood pressure include:
- Lifestyle modifications:
- Quit smoking
- Lose weight if you are overweight
- Exercise
- Avoid alcohol
- Eat a low-sodium, low-fat diet like the DASH diet.
- Medications: There are many different categories of blood pressure medications. Your doctor will work with you to find the right one. The main types include:
- Beta blockers
- Angiotensin converting enzyme (ACE) inhibitors
- Angiotensin II Receptor (ARB) blockers
- Calcium channel blockers
- Diuretics (water pills)
- Treatment of underlying conditions that cause high blood pressure, such as:
- Renal artery stenosis
- Pheochromocytoma
- Congestive heart failure
- Diabetes
- Obesity
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Dietary changes are often the first line of treatment recommended by your doctor. Source: iStock
What changes in diet help lower blood pressure naturally?
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Dietary changes are often the first line of treatment recommended by your doctor. You may be advised to:
- Limit caffeine intake
- Reduce salt intake
- Limit fatty foods
- Avoid alcohol
- Manage cholesterol
- Add potassium-rich foods to your diet (unless you are being treated for kidney failure, as potassium rich foods may be harmful to you)
Doctors often recommend the Dietary Approaches to Stop Hypertension (DASH) Diet created by the National Heart, Lung and Blood Institute (NHLBI), which focuses on whole grains, fruits and vegetables, low-fat dairy, and lean meats.
In addition to dietary modification, quitting smoking is extremely beneficial in managing high blood pressure.
SLIDESHOW
What Is High Blood Pressure (Hypertension)? Symptoms, Treatments See Slideshow 
Exercise and physical activity help lower blood pressure. Source: iStock
Can exercise help lower high blood pressure?
Exercise and physical activity help lower blood pressure by helping you lose weight and keeping your heart and blood vessels in good condition.
Weight loss achieved through diet and exercise helps control factors such as blood sugar, and other complications of obesity. Avoiding these complications helps lower blood pressure and prevent high blood pressure.
Consult your doctor before starting any new exercise program. Cardiovascular activities including walking, jogging, biking, or swimming for 30 to 45 minutes per day can help lower blood pressure.
What alternative therapies help lower and mangage high blood pressure?
Some complementary and alternative medicine strategies can help you manage your high blood pressure and prevent it from becoming elevated further.
- Reduce stress.
- Use relaxation methods such as deep breathing, imagery relaxation, yoga, meditation, and biofeedback.
- Keep a daily blood pressure chart.
- Get adequate sleep.
- Some home remedies, such as garlic, coenzyme Q-10 (CoQ10), calcium, magnesium, fish oil, and flaxseed have been shown in studies to lower blood pressure. Consult your physician before taking any supplements.
From 
Medically Reviewed on 2/19/2021
References
American College of Cardiology. "2017 Guideline for High Blood Pressure in Adults. 13 November 2017." Updated: Nov 13, 2017.
<http://www.acc.org/latest-in-cardiology/ten-points-to-remember/2017/11/09/11/41/2017-guideline-for-high-blood-pressure-in-adults>
American Heart Association. "About High Blood Pressure." Updated: Jan 22, 2013.
American Heart Association. "High blood pressure redefined for first time in 14 years: 130 is the new high." Updated: Nov 13, 2017.
<http://newsroom.heart.org/news/high-blood-pressure-redefined-for-first-time-in-14-years-130-is-the-new-high?utm_campaign=sciencenews17-18&utm_source=science-news&utm_medium=phd-link&utm_content=phd11-13-17_htn-gl>
American Heart Association. "Physical Activity and Blood Pressure." 11 Feb. 2014.
American Heart Association. "Understanding Blood Pressure Readings." 1 Mar. 2013.
Basile, J, MD. et al. "Overview of hypertension in adults." UpToDate. Updated: Nov 17, 2017.
<https://www.uptodate.com/contents/overview-of-hypertension-in-adults>
Mann, J. F. E., et al. "Choice of therapy in primary (essential) hypertension." UpToDate. Updated: Sep 13, 2017.
<https://www.uptodate.com/contents/choice-of-drug-therapy-in-primary-essential-hypertension>
NIH. "How Is High Blood Pressure Treated?" Updated: Sep 10, 2015.
<https://www.nhlbi.nih.gov/health/health-topics/topics/hbp/treatment>
NIH. "Your Guide to Lowering Your Blood Pressure With DASH." Apr. 2006.
Source: https://www.medicinenet.com/high_blood_pressure_hypertension/article.htm
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