- #1
Lisa!
Gold Member
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What does increase our blood tension and might cause hypertension? Does period and stress increase our blood tension?
More questions are coming ...:tongue:
More questions are coming ...:tongue:
Moonbear said:Where have you heard such things?
No, blood pressure is not raised due to viscosity of added sugar. When you have high blood sugar, it's not THAT much!
Wikipedia article on blood pressure said:Some physical factors are:
…
Viscosity, or thickness of the fluid. If the blood gets thicker, the result is an increase in arterial pressure. Certain medical conditions can change the viscosity of the blood. For instance, low red blood cell concentration, anemia, reduces viscosity, whereas increased red blood cell concentration increases viscosity. Viscosity also increases with blood sugar concentration—visualize pumping syrup.
Moonbear said:Salt intake also does not cause high blood pressure. Some people with high blood pressure may have it exacerbated by excess sodium (i.e., table salt) intake, but this is because they already have an underlying problem with the ability to normally excrete the excess sodium as well as to retain water.
NIH Statement on Sodium Intake and High Blood Pressure said:One important aspect of hypertension prevention and management that has raised questions among scientists and in the media is the effect of sodium consumption on blood pressure. Sodium chloride, or table salt, increases average levels of blood pressure. Some individuals have greater blood pressure responses to salt than others.
Moonbear said:And, the carbon dioxide in fizzy drinks is not going to decrease your blood pressure either. Carbon dioxide delivered to the lungs (breathed) increases blood pressure. But this is a physiological adaptation to survive asphyxiation, not a source of abnormal blood pressure (hypertension).
This is why we discourage relying on Wikipedia for reliable science information here. It is riddled with errors when it comes to scientific topics. Any random person who hears some crazy rumor can edit it and fill it with misinformation. Increased viscosity can increase blood pressure, but even pretty severely diabetic concentrations of blood sugar are not going to have such an effect. How could you even get that much sugar into blood to meaningfully affect viscosity?CaptainQuasar said:I didn't say that it was by a whole lot; see the Wikipedia article on blood pressure:
Did you read your own source? Nothing in there says sodium causes high blood pressure. What is says is that in people who already have high blood pressure, reducing sodium intake can reduce blood pressure. That's what I already said above. Sodium intake can worsen high blood pressure in those already predisposed to it. If you give a normal, healthy person a super salty dish, they will not develop high blood pressure.I didn't say it causes high blood pressure, I said it is correlated to high blood pressure. But actually, it turns out that the http://www.nhlbi.nih.gov/new/press/17-1998.htm" says that it does cause high blood pressure:
Again, read your own article. It says that the IRRITATION in the STOMACH (a LOCAL effect) by carbon dioxide causes vasodilation of stomach blood vessels, which leads to more rapid absorption of alcohol into the blood stream. This is NOT a systemic affect that would influence blood pressure.refer to this http://query.nytimes.com/gst/fullpage.html?res=9400E0DF1F31F931A15752C1A962958260" [Broken] article - the reason why you'll become drunk more quickly if you drink a beer before having liquor is at least partially because of the vasodilation effect of the carbon dioxide in the beer.
http://www.ncbi.nlm.nih.gov/pubmed/...ez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSumBr J Anaesth. 2006 Jun;96(6):708-14. said:This suggests that hypercapnia normally increases tissue oxygenation by increasing cardiac output rather than direct dilation of peripheral vessels.
But that's the problem. You chose sources that are NOT accurate scientific sources, and did not have the knowledge to evaluate them to realize they are not accurate. Your understanding of the system is highly flawed. Please do not confuse people by presenting information on topics you don't fully understand as "factual" and certainly not without citing valid SCIENTIFIC sources (Wikipedia and newspaper articles don't count).I'm not an expert or anything and I wasn't recommending a course of treatment, sorry if that wasn't clear. She asked about blood pressure and I provided a few facts about it, accurate scientific facts which I have read, not stuff I overheard when I was riding the subway or something.
Moonbear said:This is why we discourage relying on Wikipedia for reliable science information here. It is riddled with errors when it comes to scientific topics. Any random person who hears some crazy rumor can edit it and fill it with misinformation. Increased viscosity can increase blood pressure, but even pretty severely diabetic concentrations of blood sugar are not going to have such an effect. How could you even get that much sugar into blood to meaningfully affect viscosity?
Moonbear said:Did you read your own source? Nothing in there says sodium causes high blood pressure. What is says is that in people who already have high blood pressure, reducing sodium intake can reduce blood pressure. That's what I already said above. Sodium intake can worsen high blood pressure in those already predisposed to it. If you give a normal, healthy person a super salty dish, they will not develop high blood pressure.
Moonbear said:Again, read your own article. It says that the IRRITATION in the STOMACH (a LOCAL effect) by carbon dioxide causes vasodilation of stomach blood vessels, which leads to more rapid absorption of alcohol into the blood stream. This is NOT a systemic affect that would influence blood pressure.
Systemically, the vasodilatory effects of increased carbon dioxide concentrations are insufficient to keep up with the increase in heart rate also caused by carbon dioxide. The net effect is an INCREASE in blood pressure.
Moonbear said:As Jim pointed out, blood pressure regulation is complex. Heart rate, stroke volume, vasodilation or vasoconstriction, blood volume, and vascular occlusions all contribute, and it's the NET effect that determines if blood pressure is increased or decreased or maintains proper homeostasis.
NO, that's NOT what I'm saying. I don't think you're reading very carefully here. Cite a REPUTABLE source for such a claim, and I may be convinced otherwise, but I have NEVER seen any reputable source make any such claim. Even high blood glucose is a miniscule percentage of actual blood components. It's NOT going to raise blood pressure through a viscosity change. You'd be dead from diabetic coma long before you reached a change in viscosity.CaptainQuasar said:Okay, just so we're clear here: you are agreeing that increased blood sugar does increase the viscosity of blood, and that this can increase blood pressure. You're just saying that it does not do so meaningfully. That's great, that's exactly the kind of thing I expected more learned people to add to what I was saying.
No, you need to read it in context of the statements before and after it, which you quoted as well, so I know you saw them. This is a TEN YEAR OLD press release you were quoting, not a scientific study. They were saying that was a popular concern being researched at the time, not that it by itself was a fact. The statement after it qualified it to indicate that SOME people are susceptible to this effect and others are not. It's NOT salt/sodium by itself that causes the problem, but that some people have a problem in how their body handles that salt consumption that is the problem.I did read that before I quoted it and I've reread it several times now. And I really don't think it's saying that what you're claiming it does. I mean, it makes this very plain statement that I've already quoted: “Sodium chloride, or table salt, increases average levels of blood pressure.” And I don't see any qualification saying that is only true for people who already have high blood pressure. Yes, that article leads in with a vignette mentioning the number of people nationally who have high blood pressure but after scrutinizing it several times it does not look to me like the statements it is making are limited to people who already have hypertension.
If they do not already have a problem with blood pressure, then no, it is not something to worry about.But anyways, if what you're saying is true and long-term dietary consumption of salt does not affect blood pressure, that's good for me and several people I care about.
No problem there...glad to clarify on that.Okay, so although I was correct that CO2 is a vasodilator, I was incorrect that its overall effect is to decrease blood pressure. I'm sorry, I apologize for that.
Sorry, but you have not confirmed what you have said. I suggest picking up a textbook on physiology as a good starting place, and then work through actual scientific articles, not media reports. Popular press articles are NOTORIOUSLY inaccurate in describing biomedical research findings.I didn't intend to convey that this is a simple topic and re-reading my post I really don't think I did. I also do not think that I have been as careless as you're portraying me to have been, and I'm skeptical of your assertion that I'm unable to evaluate these things; you have actually confirmed a couple of the things I said while simultaneously scolding me for having said them. You also appear to have read things into what I said, the way you claimed I'd said something about salt causing high blood pressure when all I said was that there was a correlation.
But in the future I will refrain from saying anything on concrete medical topics unless I can cite a journal or something like the NIH website to support my claims.⚛
NoTime said:Since this part of th OPs question didn't seem to be addressed.
Stress in and of itself can raise blood pressure.
For example blood pressure readings taken on a doctors office visit tend to be higher (sometimes considerably) than readings from the same individual wearing a continuous blood pressure monitor.
Lisa! said:BTW, what's that blach square under CaptainQuasar's posts?
CaptainQuasar said:That's just my signature. It uses a newer technology, you might say, called Unicode. On my computer and for some people with really new computers or with special software installed, the black square looks like the atom symbol, a http://en.wikipedia.org/wiki/Rutherford_model" [Broken] of an atom.
I haven't gone and experimented or anything but my guess is that installing http://dejavu.sourceforge.net/wiki/index.php/Main_Page" [Broken] would allow it to be visible on most computers, which would also enable support for a variety of other scientific and mathematical symbols.⚛
Stress can cause a temporary increase in blood pressure, as the body releases stress hormones that constrict blood vessels and increase heart rate. This response is meant to prepare the body for a "fight or flight" situation, but chronic stress can lead to consistently high blood pressure, which can increase the risk of heart disease and other health problems.
Some studies have shown that fluctuations in estrogen and progesterone levels during the menstrual cycle can impact blood pressure, with higher levels of these hormones corresponding to higher blood pressure. However, the exact relationship between periods and blood pressure is still being studied and may vary among individuals.
There is no clear consensus on this question. Some research suggests that stress may have a greater impact on blood pressure during the premenstrual phase of the menstrual cycle, when hormone levels are changing. However, other studies have found that stress can affect blood pressure at any point in the menstrual cycle.
Yes, managing stress through practices such as exercise, relaxation techniques, and seeking support from others can help lower blood pressure levels during periods. This is because reducing stress can help decrease the release of stress hormones and promote relaxation, leading to lower blood pressure levels.
Yes, there are several other factors that can impact blood pressure, including diet, exercise, overall health, and genetics. Certain medications and substances like caffeine and alcohol can also affect blood pressure. It is important to maintain a healthy lifestyle and regularly monitor blood pressure to identify any potential risk factors.