oops double post
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oops double post
Very pure water is mainly molecular, not "ionic". Hence the socalled pH measure of "7". It (pure water) does contain a very low concentration of hydrated hydrogen ions H3O+ and hydroxyl ions (OH-) but is essentially "non ionic". When one is exposed to heavy fluid loss through perspiration... and relies on run-of-the-mill tap water to replenish same, the body takes account of this to maintain the electrolyte balance. We also get salt replacement in foods.
In extreme circumstances however there might not be enough electrolytes to restore the balance...hence the use of so-called "sports" drinks ...
No doubt there are some well qualified paramedics on this forum who can set us straight...saline solutions (buffered salt and glucose solutions) in a drip are used for rehydrating people who have sustained heavy fluid loss...