What Is Normal Blood Pressure
For years we have been told that a normal blood pressure reading is 120/80; however, more and more doctors have now lowered these numbers to 115/75. Blood pressure is different for everyone as many factors can have an effect on the numbers.
Our blood pressure refers to the amount of force behind the blood as it hits the arterial walls. As the heart pumps the blood, an ideal pressure sees the blood push against the walls that are flexible enough to expand and retract easily. Over time, our age, diet, and physical activity play a role on the elasticity of our blood vessels. With a loss of flexibility due to hardening of the walls, the heart needs to work harder to push the blood.
These factors determine the blood pressure numbers. The systolic number is the top number, and it indicates the pressure as the heart beats or pushes the blood throughout the body. The diastolic number is the bottom number, and refers to the pressure in the arteries when the heart rests between beats. During this time, the heart receives oxygen as it fills with blood.
How Does Blood Pressure Work
During relaxation of the heart , the left ventricle of the heart fills with blood returning from the lungs. The left ventricle then contracts and pumps blood into the arteries . The blood pressure in the arteries during contraction of the ventricle is higher because blood is being actively ejected into the arteries. It is lower during relaxation of the ventricle when no blood is being ejected into the arteries. The pulse we feel when we place our fingers over an artery is caused by the contraction of the left ventricle and the ejection of blood.
Blood pressure is determined by two factors:
Generally, blood pressure tends to be higher if more blood is pumped into the arteries or if the arterioles are narrow and/or stiff. Narrow and/or stiff arterioles, by resisting the flow of blood, increase blood pressure. Arterioles may become narrower when the muscles surrounding them contract. Arterioles may become stiff and narrow when older patients develop atherosclerosis.
Blood pressure tends to be lower if less blood is being pumped into the arteries or if the arterioles are larger and more flexible and, therefore, have less resistance to the flow of blood.
The heart rate increases and the forcefulness of the heart’s contractions increase, pumping more blood through the heart.
How Is Low Blood Pressure Treated
If your blood pressure is naturally low and isnt causing you any problems it probably wont need any treatment. If you have symptoms and your doctor or nurse feels that you would benefit from treatment, they will try to find the cause of your low blood pressure so that they can find the best way to treat it.;
The treatments will vary depending on the cause.
- A change in medications. If your GP thinks that your blood pressure is caused by a medication youre taking they might want to try an alternative medication or a different dose.
- Hormone replacement. If your low blood pressure is caused by a change in certain hormones, for example if your adrenal glands have been damaged, you may be referred to a specialist called an endocrinologist. They might prescribe hormone replacement medication.
- Medicines to stimulate your nerves. If you have a neurological condition, you may be given medicines to stimulate the nerves.
- Medicines for low blood pressure. These medicines narrow your blood vessels or expand the volume of your blood to raise your blood pressure. These are very rarely needed, as the treatments listed above and the changes you can make for yourself are usually enough.
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Is My Blood Pressure Too Low
Most doctors agree that a healthy blood pressure is anything under 120/80 mmHg. But how low is too low for blood pressure? Hypotension can occur when blood pressure drops below 90/60 mmHg.
This isnt a hard and fast rule, though. Since factors, like age, weight, and level of physical activity contribute to blood pressure, your doctor may not diagnose you with hypotension even if your blood pressure is a little low.
Low blood pressure typically becomes an issue only if youre experiencing symptoms, such as:
- Over-the-counter cold medicines
Does Normal Blood Pressure Change With Age
Just as our blood pressure readings change according to our posture, sleep time, and stress levels throughout the day, our blood pressure changes as we age. Despite the fluctuating or changing measurements, we should maintain a normal range. As we age, we can expect changes in our cardiovascular health, including our blood pressure and cholesterol levels. There are several factors that reflect our blood pressure levels over the years, including normal blood pressure for seniors.
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Exercise More To Help Lower Your Blood Pressure
If you already have high blood pressure, then exercising regularly for 150 minutes per week, or about half an hour most days of the week, can reduce blood pressure by approximately 5 to 8 mm Hg. Consistency is important, because blood pressure can go up again if you stop exercising. If blood pressure is elevated, exercise can help prevent hypertension.
Some kinds of aerobic exercise that can help to reduce blood pressure include walking, cycling, swimming or jogging. High-intensity interval training can be very effective for blood pressure reduction. Strength training can also help in reducing blood pressure. Consult your physician about creating an exercise program.
Some High Blood Pressure Risks You Can’t Change
Anyone can get high blood pressure. But, some people have a greater chance of having it because of things they can’t change. These are:
- Age. The chance of having high blood pressure increases as you get older.
- Gender. Before age 55, men have a greater chance of having high blood pressure. Women are more likely to have high blood pressure after menopause.
- Family history. High blood pressure tends to run in some families.
- Race. African Americans are at increased risk for high blood pressure.
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Normal Blood Pressure For Men
Men are recommended to have an average normal blood pressure of 120/80; however, as;we have noted, there are varying factors to consider when determining what works for each person. What is normal for a man in his 30s is not deemed a normal reading for a man in his 60s.
The following are the average blood pressures and the corresponding lows and highs for men from ages 15 to 64 years.
| Age |
Low Blood Pressure Symptoms
Low blood pressure is pressure so low it causes symptoms or signs due to the low flow of blood through the arteries and veins. When the flow of blood is too low to deliver enough oxygen and nutrients to vital organs such as the brain, heart, and kidney, the organs do not function normally and may be temporarily or permanently damaged.
Unlike high blood pressure, low blood pressure is defined primarily by signs and symptoms of low blood flow and not by a specific blood pressure number. Some individuals routinely may have blood pressure numbers of 90/50 with no symptoms and therefore do not have low blood pressure. However, others who normally have higher blood pressures may develop symptoms of low blood pressure if their blood pressure drops to 100/60.
During pregnancy, blood pressure tends to decrease. Normal blood pressure during pregnancy may be lower than 100/60. Your OB/GYN or Midwife should monitor your bood pressure if you are pregnant.
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How Blood Pressure Is Measured And What The Readings Mean
Blood pressure is expressed as two numbers, with one “over” the other. The first, or top, number is the systolic blood pressure. This indicates the amount of pressure your blood exerts against the walls of your arteries when your heart contracts. The second, or bottom, number is the diastolic pressure, which refers to the amount of pressure in your arteries when your heart refills between beats.
Your healthcare provider typically measures your blood pressure using a stethoscope and an inflatable cuff that wraps around your upper arm. The cuff is inflated until it is tight enough to stop the blood from flowing, then it is slowly deflated. Through the stethoscope, your doctor or nurse will hear the whooshing sound of the blood returning; this is the systolic pressure. The moment the whooshing sound disappears marks the diastolic pressure.
The commonly accepted ideal blood pressure for adults is 120/80 mm Hg or lower. But since blood pressure naturally rises with age, your BP might be higher than that without any cause for concern. For instance, according to a chart from Disabled World, a normal blood pressure reading for an 80-year-old woman could be 134/84 mm Hg.
So, what is considered low blood pressure in elderly people? Typically, the low blood pressure range is anything below 90/60 mm Hg. This is called hypotension. The Disabled World chart shows that a dangerous blood pressure level is 50/33 mm Hg.
Diagnosing High Or Low Blood Pressure
Only one of your numbers needs to be higher than it should be to be diagnosed with high blood pressure, and only one needs to be lower than it should be to be diagnosed with low blood pressure.
So if your top number is over 140 or the bottom number is over 90, you may be diagnosed with high blood pressure, regardless of the other number. If your top number is under 90 or your bottom number is under 60, you may be diagnosed with low blood pressure. Use the chart to see where your numbers sit.
If your top number is consistently higher than 140mmHg, but the bottom number is healthy – this is known as Isolated Systolic Hypertension. If the bottom number is consistently higher than 90mmHg but the top number is healthy – this is known as Isolated Diastolic Hypertension.
Making sure your readings arent a one-off
A single high reading doesnt necessarily mean you have high blood pressure, as many things can affect your blood pressure throughout the day, such as the temperature, when you last ate, and if youre feeling stressed.
Your doctor or nurse will probably want to measure your blood pressure a number of times over a few weeks to make sure the reading wasnt just a one off and that your blood pressure stays high over time.;
Read about how high blood pressure is diagnosed, getting a blood pressure check, the further tests you might have if you have a high blood pressure reading, and what it means if youre diagnosed with high blood pressure.
Read more
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Average Blood Pressure Reading By Age
Synopsis: Blood pressure chart by age reveals if adults and children have high, low, or healthy average blood pressure range for their age. Systolic Pressure is the blood pressure reading when your heart beats. This reading is always the the first or top number. Diastolic Pressure is blood pressure measurement when your heart relaxes. This is always the the second or bottom number.
How Can You Prevent Low Blood Pressure
You may be able to prevent hypotension by making changes to your lifestyle and diet, such as:
- Eating fewer carbohydrates and choosing small, healthy meals.
- Staying hydrated and avoiding alcoholic drinks.
- Rising slowly when youve been sitting or lying down.
- Taking a few deep breaths before you change position.
- Wearing compression stockings.
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How Is Low Blood Pressure Diagnosed
Your doctor will ask about your symptoms and take your blood pressure by placing a blood pressure cuff around your upper arm. The cuff will tighten on your arm, and the monitor will measure your systolic and diastolic pressure. A blood pressure reading of 90/60 mm Hg is considered low blood pressure.
Low blood pressure may be a sign of an underlying condition, so your doctor will try to determine what caused your blood pressure to drop. Depending on your medical history and symptoms, your doctor may also check your heart using an echocardiogram, electrocardiogram, or stress test. Your doctor may also perform blood tests to check for:
- Hormonal imbalances.
If You Notice A Sudden Decline In Blood Pressure
A single lower-than-normal reading is not cause for alarm, unless you are experiencing any other symptoms or problems. If you experience any dizziness, lightheadedness, nausea or other symptoms, its a good idea to consult with your healthcare provider. To help with your diagnosis, keep a record of your symptoms and activities at the time they occurred.
Is low blood pressure related to low heart rate? Find out.
Written by American Heart Association editorial staff and reviewed by science and medicine advisers. See our editorial policies and staff.
Last Reviewed: Oct 31, 2016
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Symptoms Of Low Blood Pressure In Elderly Individuals
As long as you feel OK, a low blood pressure reading is generally nothing to worry about. Doctors are not usually concerned about a low BP in otherwise healthy individuals.
So, when is blood pressure too low? You should see your healthcare provider if you experience hypotension symptoms such as:
- Dizziness
- Confusion or inability to concentrate
- Nausea
- An irregular or rapid heartbeat
- Weakness
Low Blood Pressure Chart
Considering low blood pressure chart in context of women, for men, during pregnancy and by age
Low blood pressure is defined as blood pressure that is below the normal expected for a person in a given environment. You may look at the blood pressure definition for a broader definition of blood pressure. The following low blood pressure chart is applicable to adult men and women. This is because both adult male and females are expected to have a similar normal blood pressure on average of 120/80mmHg.
This chart in discussion here may not be efficiently applicable on children because infants and children specifically have significantly lower blood pressure compared to adult men and women.
High blood pressure which is also known as hypertension is often presented with the aid of a high blood pressure chart showing the various stages of hypertension congruent with particular blood pressure numbers. Several challenges present when attempting to do the same for low blood pressure in the form of a low blood pressure chart.
Chief among these challenges is the widely agreed and understood relativity of a low blood pressure condition. The chart above summarizes known data of low blood pressure readings in some individuals and accompanying symptoms of low blood pressure.
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What Is Normal Blood Pressure According To Age
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 is measured after the heart contracts and is highest. The second 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 shows normal blood pressure according to age both male and female.; Diastolic blood pressure and Systolic Blood Pressure are included in the chart.
Normal Blood Pressure By Age
| Age |
When To Call Your Doctor
The risks of both high and low blood pressure make monitoring your blood pressure at home essential to your overall health and well-being. Both Dr. Wong and Dr. Desai recommend calling your healthcare provider if your self-monitored blood pressure readings are greater than 180/120 mmHgeven if you have no other symptoms.
You should call 911 if these blood pressure readings are associated with symptoms of organ damage, such as headache, vision changes, weakness, numbness, chest pain or shortness of breath, says Dr. Wong.
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The Definition For What Is Considered High Blood Pressure Has Been Tightened Here’s What You Need To Know
If you didn’t have high blood pressure before, there’s a good chance you do now.
In 2017, new guidelines from the American Heart Association, the American College of Cardiology, and nine other health organizations lowered the numbers for the diagnosis of hypertension to 130/80 millimeters of mercury and higher for all adults. The previous guidelines set the threshold at 140/90 mm Hg for people younger than age 65 and 150/80 mm Hg for those ages 65 and older.
This means 70% to 79% of men ages 55 and older are now classified as having hypertension. That includes many men whose blood pressure had previously been considered healthy. Why the change?
When To Contact A Doctor
Anyone who experiences worrying symptoms of shock should seek emergency medical attention.
People who experience mild but uncomfortable symptoms of low blood pressure may also want to talk with their doctor to discuss treatment options.
Anyone uncertain or uncomfortable about symptoms such as low blood pressure and high heart rate should see a doctor as well. A full diagnosis can help bring peace of mind and identify any underlying issues.
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Treatment For High Pulse
Treatment for high pulse will vary according to a range of factors.
It is helpful to try to identify when the pulse first began to rise. Some episodes of a high pulse may be temporary. For example, if a person develops a high pulse after moving from a prone to a standing position too quickly, the heart might beat more quickly to compensate for gravitys effects.
People who experience bouts of low blood pressure or high pulse while moving from a prone to standing position could try to slow down these movements to help avoid the issue.
Exercising may also lead to a high heart rate, especially if a person is not very fit. This is because the heart may start beating faster even after a person attempts minor exercise.
If a person notices that their heart is beating faster, finding ways to calm the body and brain may help. A person can try slowing down their breathing rate or practicing guided meditations to help them relax and reduce heart rate.
If the heart rate does not go back to normal or if a person is worried, contact a doctor for a full diagnosis.