Water pressure: can a second glass still boost blood pressure?
NCT ID NCT00580996
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at whether drinking water raises blood pressure as much the second time if you've already had a full glass a few hours earlier. Researchers are testing 20 adults with orthostatic hypotension, a condition where blood pressure drops when standing. Participants will drink either 16 ounces or 1 ounce of water, and their blood pressure and heart rate will be measured.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
water
What this could lead to
If it works, this could help doctors understand how to best use water to manage blood pressure drops in orthostatic hypotension.
What could go wrong
This is a very small, early-stage study with only 20 participants. It is not testing a new treatment, just a physiological effect, so it may not change clinical practice.
Disclaimer
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Vanderbilt University
Nashville, Tennessee, 37232, United States