Will B.P. increase if I am very thirsty?

Discussion in 'General Science & Technology' started by plakhapate, Nov 3, 2007.

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  1. plakhapate Banned Banned

    Once I was seeing the exhibition for more than 6 hours.

    I was very thirsty but there was no water available nearby.

    However there was one counter where free B.P. measurement was possible.

    My B.P. was found to be 170 / 90

    Was B.P. increase because I was very thirsty?

    The blood become thick and Pressure drop increased ?

    Subsequently I did not have any problem.

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  3. mathman Valued Senior Member

    It could be stress related. Six hours without water itself probably wouldn't cause a pressure rise.
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  5. cosmictraveler Be kind to yourself always. Valued Senior Member

    If you were walking around in an exhibition hall looking around at stuff then

    you probably just rose your BP due to your walking and nothing more.

    I don't understand what this means, can you clarify it?
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  7. Fraggle Rocker Staff Member

    When a rise in blood pressure is not correlated with an obvious cause, the reason is usually constriction of the capillaries and other blood vessels. Pressure increases because the same volume of blood must pass through a smaller cross section, rather than because the blood is "thicker." I'm not even sure blood actually becomes thicker from temporary dehydration; your body has a number of ways of scavenging water, including simply pumping it back out of your bladder.

    One of the most common causes of temporary vasoconstriction is caffeine.
  8. MetaKron Registered Senior Member

    Google search terms: dehydration blood pressure

    It's all over the place. Dehydration increases blood pressure and high blood pressure is often an adaptation to chronic dehydration.

    Now here's a screwy fact: Low salt can lead to dehydration because the body won't retain water without salt.
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