Why is normal blood pressure between 80-120? & why don't these numbers change according to a person's height?
537867
Height has no bearing on the blood pressure. Its a measure of the pressure with which the heart pumps the blood in our arteries. Your logic is right i.e in tall people the arteries are longer and hence may need a higher pressure to move the blood but its like pump which is continuously working so it doesn't make much difference with an increased height
600806
"Blood pressure is the pressure exerted by the blood on the walls of the blood vessels\n...\nThe systolic pressure is...the peak pressure in the arteries during the cardiac cycle; the diastolic pressure is the lowest pressure"\n\nIn other words:\nBlood pressure (measured using a cuff around the arm filled with air & mercury) is how much pressure is being put on your arteries.  If you've ever had your blood pressure taken, the systolic pressure is the point when the cuff stops cutting the circulation off and you are able to feel you pulse in your arm.  The diastolic pressure is the point when the cuff no longer puts pressure on the artery (because the arteries pressure is now higher than that of the cuff).  This is the point where you would no longer be able to feel your pulse in your arm and it would just feel normal again.\n\nTypically the normal blood pressure is 120/80, but this can vary greatly by age and state of health.\n\nHope this was helpful.
1093718
No.  It is high.  \n\nYour top number should be 120 or less.  Anything between 120 and 140 is "borderline" high.  Yours is above that, so you are high.  Your bottom number should preferably be 80 or below.  Up to 90 is borderline.  Again, you are above that.\n\nBut one test doesn't prove anything.  People vary from day to day and from time to time within a day.  Several readings are necessary before your doctor can make any diagnosis or recommend any treatment.  \n\nIt is also important to get your blood pressure taken by a professional.  Don't rely on the machines you find in drug stores and supermarkets.  If your reading of 148/96 did not come from a doctor or nurse's blood pressure meter, then it is time to get an accurate reading before you start to worry too much.\n\nGood luck.  Hi blood pressure  is a funny thing.  It doesn't hurt, so it is easy to ignore or even forget about entirely.  But it can *kill* you just the same.  On the other hand, treating it is usually fairly easy, assuming you get to it before it does any damage to your heart, your eyes, or your kidneys.  So don't wait around.  See a doctor.  Good luck!!
1182771
there is absolutely nothing wrong with that pressure - it is EXCELLENT as a matter of fact - you may think its a little low, which technically it is, however,  it would be excellent for a 20 year old, let alone 42...... I would ask this - is your friend on medications for blood pressure? If so, she/he may want to monitor the pressure regularly or is she/he starts feeling light-headed or unusually weak..... As long as the pressure stays in that range, your friend is good to go.
941993
Sounds like blood pressure to me....and I am 40!  LOL....But you don't have to be "40" to get it.  If you are stressed alot, you can get it.  It is even hereditary.  It is also nothing to mess around with.  You should see your doctor and get checked.  ASAP.
477209
the above is mostly correct. Ideal BP would be 115/75 according to JNC 7 guidelines.  Systolic below 80-90 or diastolic below 60 or so would indicate low BP. However everyone is different and some people have BP's of 90/60 and are very healthy-low is verified by lower than normal BP with symptoms of hypotension Such as Lightheaded, dizzy, loss of consciousness 'rapid heart rate in attempt to counteract the low BP, volume depilated either dehydration or loss of Blood, etc.\n\nBP's stated above are in mmHg (millimeters of mercury) the common  standard in U.S.
461769
The normal resting heartbeat range is from 60 to 100.
225173
Blood pressure is the pressure of the blood against the walls of the arteries.  It results from two forces, one is created when the heart pumps blood into the arteries and through the circulatory system.  The other is the arteries resisting the flow of blood.\nThe higher (systolic) represents the heart contracting and the lower (diastolic)is the heart relaxing between beats.  A blood pressure of 120/80 is considering optimal for adults over the age of 18.  A blood pressure of 140 over 90 is considered hypertension.  Yours of 150/70 is considered mild high and many factors affect blood pressure, one of which is weight.  Others are stress, salt intake, exercise, race, age and alcohol consumption among others.  150/70 is not terribly high but then again the higher the number the greater the risk to good health.  Not being a physician, my advice would be assess your lifestyle and have it checked again.  Don't stress yourself out before visiting your clinic and ask questions that concern you, they are the best resource since they have your health history.  You can also visit www.americanheart.org, which is considered one of the top online resources for a healthy heart.
721184
Probably your blood pressure would be high.  However, if you are in doubt, have a doctor check it out.
174560
130/90 is near the upper limit of what was once considered normal blood pressure.  Current thinking is that lower than this is better (120/80).  According to a 2003 report by the National Institutes of Health your b.p. level of 130/90 would be considered "prehypertensive" and requires health-promoting lifestyle modifications (not drugs).  \nEat whole/fresh foods, avoid processed foods, lose weight if necessary, exercise daily, avoid smoking, and limit or avoid alcohol.  Low levels of dietary calcium, potassium, magnesium, and omega-3 fatty acids (e.g. fish oils) in the diet may contribute to elevated blood pressure, so it may be helpful to supplement your diet with them.  \nIf these approaches do not lower your b.p., then it may be wise to seek professional guidance.\nGood luck!
630554
Blood pressure is a continuously distributed variable, and the risk of associated cardiovascular disease likewise rises continuously. The point at which blood pressure is defined as hypertension is therefore somewhat arbitrary. Presently finding sustained blood pressure of 140/90 mmHg or above, measured on both arms is generally regarded as diagnostic. Because blood pressure readings in many individuals are highly variable — especially in the office setting — the diagnosis of hypertension should be made only after noting a mean elevation on two or more readings on two or more office visits, unless the elevations are severe or associated with compelling indications such as diabetes mellitus, chronic kidney disease, heart failure, post-myocardial infarction, stroke, and high coronary disease risk.\n\nRecently, the JNC 7 (The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure)[1] has defined blood pressure 120/80 mmHg to 139/89 mmHg as "prehypertension." Prehypertension is not a disease category; rather, it is a designation chosen to identify individuals at high risk of developing hypertension.\n\nIn patients with diabetes mellitus or kidney disease studies have shown that blood pressure over 130/80 mmHg should be considered a risk factor and may warrant treatment. Even lower values are considered diagnostic using home blood pressure monitering devices.
79371
It depends...What is the systolic reading?  Do you have negative symptoms like dizzyness?  Joggers, athletes...people who do arobic exercise may indeed have lower BPs compared to standard and this is good.  The "mean" blood pressure" is the systolic and diastolic added together and divided by two.  BP of 120/80 has a MBP of 100.  The average acceptable MBP is 100, however the healthy normal for some may well be lower.  The best way to answer your question has much to do with your own medical history and the incclusion of possible negative symptoms.
309861
120/80  is quoted as the 'normal' BP but there is more a healthy range (which changes according to the latest trend). \n\nWhen u do excercise ur BP rises because your heart is trying to get more blood to you tissues and also trying to get rid of the heat produced (it's why u go all red). But over time your resting blood pressure does decrease. But this might be a combination of losing weight and becoming fitter (which leads to a lower heart rate). \n\nSo the answer is really yes it does, while your doing the exercise and a bit after.
84483
lying down,sitting,standing,etc don't make that much difference. You aren't looking for someones blood pressure after they have been running around, you want resting pressure. If the person has been lying around awhile and then jumps up and runs awhile then the difference between sitting pressure and what you started with before they ran,will notably be different. I have veins that are hard to get a pressure from so I raise my arms and squeeze my hands to get more pressure flowing through my arms which will cause my blood pressure to be read easier.
790773
It really depends on the age of the child.  As they get older the normal BP rises.\nThey seem a little low but then again you don't state her age or body size.  Those BP's are pretty normal for infants and toddlers but might be a little low for elementary age.  Way too low for teenagers. \nNot drinking enough water will cause the BP to be low.
733172
yes honey thats fine... if thats normal for you.. im female and 21 and mine is like 98/59  some of us just run a lil lower than others.. nothing to worry about... my mom is 52 and hers is really low too...  just make sure especially as u get older when u go to the dr if your blood pressure is alot higher than that.. but still considered in the normal range.... tell your dr that your normal is 109/61...\n\nnothing to worry about!
1127748
I believe it is between 80-120 for normal with 80 being slightly retarded. most people come in betweer 90-120. At least this is what I was taught in my psychology class.