Len Saputo cites a research study published in the journal The Lancet examining how systolic and diastolic blood pressure in year olds could predict risk of cardiovascular disease later in life. He explains that the difference between the two types of blood pressure is probably more important than either number alone.
Diastolic readings are particularly important in monitoring the blood pressure in younger individuals. Systolic blood pressure is known to rise with age as a result of hardening of the arteries. Share this comparison:. If you read this far, you should follow us:. Diffen LLC, n.
Systolic vs. Diastolic Blood Pressure. Comparison chart Diastolic versus Systolic comparison chart Diastolic Systolic Definition It is the pressure that is exerted on the walls of the various arteries around the body in between heart beats when the heart is relaxed. It measures the amount of pressure that blood exerts on arteries and vessels while the heart is beating. Normal range 60 — 80 mmHg adults ; 65 mmHg infants ; 65 mmHg 6 to 9 years 90 — mmHg adults ; 95 mmHg infants ; mmHg 6 to 9 years Importance with age Diastolic readings are particularly important in monitoring blood pressure in younger individuals.
As a person's age increases, so does the importance of their systolic blood pressure measurement. Blood Pressure Diastolic represents the minimum pressure in the arteries. According to the American Heart Association , your heart beats 60 to times per minute, or about , times per day.
As it beats, blood is forced against your artery walls. Your systolic blood pressure is the top number on your reading. It measures the force of blood against your artery walls while your ventricles — the lower two chambers of your heart — squeeze, pushing blood out to the rest of your body. Your diastolic blood pressure is the bottom number on your reading. It measures the force of blood against your artery walls as your heart relaxes and the ventricles are allowed to refill with blood.
Diastole — this period of time when your heart relaxes between beats — is also the time that your coronary artery is able to supply blood to your heart. Your blood pressure may be normal, high, or low. High blood pressure is also referred to as hypertension, and low blood pressure is called hypotension. The American Heart Association describes the different blood pressure ranges for adults as:. Your doctor may diagnose high blood pressure if either your systolic or diastolic is high, or if both numbers are high.
Both high blood pressure and low blood pressure need to be managed. According to the American College of Cardiology , almost half of the adults in the United States now fit the new definition of high blood pressure. Not surprisingly, the risk factors for these two conditions are very different. Your gender affects your risk of high blood pressure.
The American Heart Association states that men are at a higher risk of high blood pressure than women are until age But at 65 years and older, women are at higher risk than men. Your risk is also higher if:. When your breathing is inadequate, your oxygen levels fall and your blood vessels constrict.
This increases your blood pressure. When sleep apnea is persistent, this increased blood pressure may continue during the day when breathing is normal.
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The dawn phenomenon: What can you do? Tips for cutting costs of blood glucose test strips Infographic: Transplant for Polycystic Kidney Disease Treating pain: When is an opioid the right choice? They occur as the heart beats, pumping blood through a system of blood vessels that carry blood to every part of the body. Systole occurs when the heart contracts to pump blood out, and diastole occurs when the heart relaxes after contraction.
A person who suspects that they have high or low blood pressure should consult their doctor to find out the best treatments, which may include medications or lifestyle changes. Even if a person is taking medication for problematic blood pressure, they should still measure their blood pressure levels regularly, since the condition may not have any apparent symptoms. A heart rate is the number of times the heart beats per minute. Hypotension, or low blood pressure, can stem from a number of causes.
Severe hypotension may indicate an underlying condition that needs treatment. People sometimes call high blood pressure the silent killer because it often has no symptoms, but it can lead to life threatening complications. When a person's blood pressure is low enough to cause symptoms, it can have serious health consequences, including shock and kidney failure.
Hypertension or high blood pressure can lead to heart disease, stroke, and death and is a major global health concern. A range of risk factors may…. What are diastole and systole in blood pressure? Medically reviewed by Suzanne Falck, M. Definitions Diastole vs. What are diastole and systole?
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