High blood pressure is divided into primary and secondary hypertension,
secondary hypertension occurs in 10 % of patients and is due to other underlying diseases " kidney diseases, hormonal disorders ... " or medications , and is treated by treating the cause.
primary hypertension is said to be idiopathic which means that it has no known cause , but many factors play a role in it including genetics, obesity , diabetes ....
if you want more detailed information i advice you to have a look at the Health Information Center :
http://google.com/coop/cse?cx=007185308018807068018%3Ax2z07lqx3mg
which can give you more detailed explanation with scientific terms and so on .
2007-04-13 09:06:36
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answer #1
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answered by Anonymous
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2016-05-17 17:32:27
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answer #2
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answered by Anissa 3
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The 'cause' of hypertension has been the subject of considerable study over the past 2 decades. The answers so far have listed 'things' which might contribute to your blood pressure reading but they are not causal. The arteries are lined by endothelial cells. They are a continual 'tube' and the blood circulating through such vessels is often referred to as the blood envelope. It is thought that the primary cause of hypertension is endothelial dysfunction. The endothelial cell is truly remarkable and the ability to generate a wide variety of vaso-active substances. Endothelial dysfunction is thought initially to be a reversal of the normal response to vaso-active peptides. This means that something that would normally dilate the blood vessel actually constricts it. The next step in hypertension is thought to be an alteration in rheology (blood flow). Laminar blood flow is good but hypertensive individuals begin to display non-laminar blood flow. This is important because with laminar blood flow potentially harmful substances in the blood stream do not come in contact with the wall of the artery. With non-laminar blood flow not only due such substances 'strike' the wall of the artery they cause the wall of the artery to express adhesion factors so that these harmful substances stick to the wall of the blood vessel. Penetration of these substances into the intima or media of the arterial wall is thought to the be next step. The problem is that there is about a 10 year period involving what I have referenced above prior to the blood pressure being elevated. Thus considerable damage has been done prior to diagnosis. This suggests that routine blood pressure measurement is essential in making an early diagnosis and once the diagnosis is made decisive and definitive intervention is very important. We have several families of drugs today which seem to restore endothelial function as well as lower blood pressure. Of course no medication will be able to undo all of the damage meaning that a hypertensive patient with a 'normal' blood pressure will have a higher risk of cardiovascular events than someone with the same blood pressure reading but without a history of hypertension. If I may be of further assistance please let me know. I wish you the very best of health and may God bless.
2016-03-18 00:43:33
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answer #3
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answered by Vernieke 4
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3 years ago, I was diagnosed - hypertension with a reading of 160/100. I used to feel dizzy a lot, my legs had awful cramps, and levels were very low in my potassium, causing my fingers and toes to always cramp together. One day I started to feel really faint while I was driving with my daughter in the back seat and I passed out, hitting 3 cars and ending up in a ditch. That moment,I knew I had to do something because my meds weren't working. I heard about this diet from a friend and thought I'd give it a shot. The results have been remarkable. In just 21 days, I honestly can't remember feeling this good, my blood pressure went from 175/110 to 125/70.
2016-05-18 02:25:20
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answer #4
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answered by ? 4
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High blood pressure is either Primary or Secondary. Primary hypertension has no identifiable cause and constitutes 90% of cases. Secondary, as the name implies, is a result of a disease or condition and constitutes 5 to 10% of cases. There are many aggravating factors which can be so important as to make the difference in having it or not. Salt, obesity, alcohol, stress, sedentary lifestyle are a few. See www.bloodpressure-drs-practical-guide.com
2007-04-13 09:47:50
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answer #5
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answered by Dr. Moloney 1
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90% of all the high blood pressure, or hypertension is caused by no known reason at all. It is called Essential Hypertension or Primary Hypertension. This is thought to be more common in obese, less active people with other people having hypertension in their family.
The other 10% cases are Secondary Hypertension. They have a cause lying as a defect in other organs. Heart and circulation, kidneys, lungs, nervous system, etc.
2007-04-13 12:30:10
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answer #6
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answered by s_a_b_t 2
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High blood pressure is caused due to intake of high sodium content food, sleeping problems, stress, anger and excitement and noise. More information available at http://ailments.in/hypertension.html
2007-04-14 00:47:09
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answer #7
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answered by Anonymous
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A number of environmental factors have been implicated in the development of hypertension, including salt intake, obesity, occupation, alcohol intake, family size, stimulant intake, excessive noise exposure, and crowding.
2007-04-13 10:28:38
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answer #8
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answered by ES-335 2
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Can be caused by several things. Go to WebMD and look it up. This website is great and has a wealth of knowledge.
2007-04-13 09:01:33
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answer #9
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answered by Cindy Roo 5
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Too much salt, overweight, smoking, a family history of it, stress,
and a few more things as well.
2007-04-13 12:24:41
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answer #10
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answered by gogirl 5
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