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    hey everyone,

    so i know that the stomach acid has a PH of around 1-2, but is the PH always the same? i mean what if you drink a lot of water in an instant, it would become diluted, surely? but i want to know if it behaves like a buffer solution, and resist this change by perhaps creating more of the acid? and if it does, would it take long or is it immediate?

    thanks in advance
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    Stomach distension (expansion of the stomach in response to incoming food/fluid) stimulates the release of a hormone called gastrin, which is one of the triggers for HCl production. This means that taking in lots of water in would, by expanding the stomach, increase the rate of HCl secretion. I suppose for this reason changes in pH are resisted even though water has been drunk. This response would be pretty fast- gastrin is released very close to where it acts- but I'm not sure exactly how long.
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    (Original post by BioSam)
    Stomach distension (expansion of the stomach in response to incoming food/fluid) stimulates the release of a hormone called gastrin, which is one of the triggers for HCl production. This means that taking in lots of water in would, by expanding the stomach, increase the rate of HCl secretion. I suppose for this reason changes in pH are resisted even though water has been drunk. This response would be pretty fast- gastrin is released very close to where it acts- but I'm not sure exactly how long.
    thanks!
 
 
 
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