Blood pressure is the intrinsic pressure
within your arteries and veins. Your body needs this pressure to
adequately supply all your tissues and organs with nutrients. Like
the plumbing in your house, adequate pressure is needed, but if
that pressure gets too high it causes problems.
High blood pressure is a combination of environmental risk factors
and genes. High blood pressure is defined as any systolic pressure
(top number) above 140 or diastolic (bottom number) higher than
90.
High blood pressure is not a disease itself, but indicates a risk
factor for several other conditions like heart attack, stroke, and
kidney failure. The most beneficial way to control blood pressure
is naturally. This is because medications that control blood
pressure come with serious side effects. These side effects can
sometimes be more harmful than the high blood pressure itself.
Things like lack of exercise and bad eating habits can cause a
buildup of plaque inside your arteries. Excessive plaque on the
interior walls of your arteries makes them smaller, known as
“Atherosclerosis”. When the pipes that transport fluid get
smaller, the pressure that same volume of fluid exerts goes up. If
the blood pressure gets too high, arteries have a greater chance
of bursting. Arteries get larger or smaller depending on the needs
of the body. Excessive plaque makes this increasingly more
difficult for a body to achieve.
A person’s blood pressure can also be too high due to genetics. A
landmark study published in Nature in 2011 found 29 genetic
variants that affected blood pressure. The authors found any one
variant in a gene did not increase risk of hypertension, but
people with multiple variants were much more likely to have high
blood pressure.
Showing posts with label Systolic. Show all posts
Showing posts with label Systolic. Show all posts
Nov 8, 2013
Sep 13, 2013
Blood Pressure
Blood pressure is really just that- the
pressure at which blood moves around the body in your arteries. The
easiest and least invasive way to test the pressure is to
momentarily stop the flow of blood and then slowly allow it to begin
again. The pressure at which it begins to flow is the highest
pressure the blood exerts on your artery walls.
Medical professionals do this by using a blood pressure meter known as a Sphygmomanometer. They encircle a limb, usually an arm, with a balloon-like device known as a blood pressure cuff. While pumping the cuff up, they use a stethoscope to listen for a heart beat past where the cuff is cutting off blood flow. When they no longer hear the heart beating, they slowly release the pressure while watching the pressure gauge.
When they start to hear the heart beat again, this is the top number of blood pressure, known as systolic pressure. They continue to release the pressure until they once again, no longer hear the heart beating, this is the bottom number of blood pressure, known as diastolic pressure. Together these numbers tell them two things: the pressure that is inside arteries between heartbeats (the bottom number) and the pressure inside arteries when the heart squeezes (the top number).
Different disease processes like coronary artery disease can cause higher than normal blood pressure. Lower than normal blood pressures can be a sign of other disease processes, like shock caused by infection. The difference between top and bottom numbers, or a change in that difference, can also point to specific problems like too much fluid around the heart, not allowing it to work properly.
Combining this information with a person’s heart rate can also tell numerous other things that could be happening. If you have been in a car accident and have a lower than normal blood pressure and higher than normal heart rate, you could be bleeding internally. If you were in another car accident and have an extremely high blood pressure and a low heart rate, you could be bleeding in your brain. High blood pressure is not a disease or illness in and of itself. It is merely a symptom for other problems.
Medical professionals do this by using a blood pressure meter known as a Sphygmomanometer. They encircle a limb, usually an arm, with a balloon-like device known as a blood pressure cuff. While pumping the cuff up, they use a stethoscope to listen for a heart beat past where the cuff is cutting off blood flow. When they no longer hear the heart beating, they slowly release the pressure while watching the pressure gauge.
When they start to hear the heart beat again, this is the top number of blood pressure, known as systolic pressure. They continue to release the pressure until they once again, no longer hear the heart beating, this is the bottom number of blood pressure, known as diastolic pressure. Together these numbers tell them two things: the pressure that is inside arteries between heartbeats (the bottom number) and the pressure inside arteries when the heart squeezes (the top number).
Different disease processes like coronary artery disease can cause higher than normal blood pressure. Lower than normal blood pressures can be a sign of other disease processes, like shock caused by infection. The difference between top and bottom numbers, or a change in that difference, can also point to specific problems like too much fluid around the heart, not allowing it to work properly.
Combining this information with a person’s heart rate can also tell numerous other things that could be happening. If you have been in a car accident and have a lower than normal blood pressure and higher than normal heart rate, you could be bleeding internally. If you were in another car accident and have an extremely high blood pressure and a low heart rate, you could be bleeding in your brain. High blood pressure is not a disease or illness in and of itself. It is merely a symptom for other problems.
May 27, 2011
Blood Pressure Facts
High blood pressure affects about 50 million Americans and 1 billion people worldwide.
Blood pressure measures the force of blood pushing against the walls of the arteries as the heart pumps blood. It is highest near your heart and in the major arteries and lowest in small arteries and capillaries. Because it varies, blood pressure is taken in a standardized place, usually on the inside of your upper arm along the brachial artery.
The upper number, systolic blood pressure, measures the pressure in the arteries when the heart pumps blood throughout the body. The lower number, diastolic blood pressure, is the pressure in the arteries when the heart is relaxing. Healthy blood pressure should be around 120/80 or lower. When the systolic pressure is greater than 120 and the diastolic pressure is greater than 80, patients are diagnosed as having high blood pressure. These levels have recently been lowered from 140/90. Different levels are used for children and adolescents.
High blood pressure is called hypertension and can lead to a number of serious conditions, including coronary heart disease, heart failure, stroke, and kidney failure. Elevated blood pressure levels can make you tired, give you headaches, cause vision problems, and give you an upset stomach, or there can be no symptoms.
Low blood pressure is called hypotension and can result in a decrease in the amount of blood being pumped to the brain resulting in lightheadedness, dizziness, weakness, and fainting. Extremely low blood pressure can also be a sign of a severe cardiac disease and should be taken just as seriously as high blood pressure.
Blood pressure measures the force of blood pushing against the walls of the arteries as the heart pumps blood. It is highest near your heart and in the major arteries and lowest in small arteries and capillaries. Because it varies, blood pressure is taken in a standardized place, usually on the inside of your upper arm along the brachial artery.
The upper number, systolic blood pressure, measures the pressure in the arteries when the heart pumps blood throughout the body. The lower number, diastolic blood pressure, is the pressure in the arteries when the heart is relaxing. Healthy blood pressure should be around 120/80 or lower. When the systolic pressure is greater than 120 and the diastolic pressure is greater than 80, patients are diagnosed as having high blood pressure. These levels have recently been lowered from 140/90. Different levels are used for children and adolescents.
High blood pressure is called hypertension and can lead to a number of serious conditions, including coronary heart disease, heart failure, stroke, and kidney failure. Elevated blood pressure levels can make you tired, give you headaches, cause vision problems, and give you an upset stomach, or there can be no symptoms.
Low blood pressure is called hypotension and can result in a decrease in the amount of blood being pumped to the brain resulting in lightheadedness, dizziness, weakness, and fainting. Extremely low blood pressure can also be a sign of a severe cardiac disease and should be taken just as seriously as high blood pressure.
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