Water drinking acutely improves orthostatic tolerance in healthy subjects (2002)

Re:Water drinking acutely improves orthostatic tolerance in ... by md2020 on Thursday December 23, 2021 @11:06AM (#29663162)

Another technique you can try to cut off the dizziness upon standing is flex your abdominal muscles as soon as you feel it coming on. Works 100% of the time for me. Probably works for the same reason (blood pressure), but easier than hyperventilating :)

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Re:Water drinking acutely improves orthostatic tolerance in ... by lukas099 on Thursday December 23, 2021 @12:29PM (#29664058)

Yep, the valsalva maneuver against a closed glottis works great for this.

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Re:Water drinking acutely improves orthostatic tolerance in ... by WillPostForFood on Thursday December 23, 2021 @03:15PM (#29665987)

During the Valsalva maneuver (i.e., exhaling against a closed glottis or bearing down as though to defecate), intrathoracic pressure increases and leads to increased arterial pressure as a result of increased afterload. It is easily done by having the patient take a deep breath, put their thumb in their mouth with closed lips, and attempt to exhale without expelling any air.

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Re:Water drinking acutely improves orthostatic tolerance in ... by simonswords82 on Thursday December 23, 2021 @03:01PM (#29665829)

This is the most HN comment ever. Love it. Merry Christmas :)

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Re:Water drinking acutely improves orthostatic tolerance in ... by c54 on Thursday December 23, 2021 @05:17PM (#29667145)

Thanks for this suggestion, I have the same experience of lightheadedness upon standing up (very often) and will definitely be working this into a habit.

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