I remember back in the 80's and 90's Dr. Dean Edell on his talk show routinely tried to bash this "8 cups of water a day" rule of thumb as an urban legend.
He says in this 2002 post that your body weight * 0.08 is the approximate number of cups of water you should get, but I think that includes all that you normally get from food too.
It's really hard to tell what the right number is since there are so many variables involved. And you're right, water comes from other places too. The one thing that is certain is the 8 cups is definitely on the short side.
Also, if you're pissing constantly, wouldn't that be evidence that you're trying to over-hydrate yourself? If you were actually dehydrated, wouldn't your body absorb the additional water you drank rather than excreting it?
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[ 2.2 ms ] story [ 10.7 ms ] threadI remember back in the 80's and 90's Dr. Dean Edell on his talk show routinely tried to bash this "8 cups of water a day" rule of thumb as an urban legend.
He says in this 2002 post that your body weight * 0.08 is the approximate number of cups of water you should get, but I think that includes all that you normally get from food too.
And this article on Snopes.com says that there's no compelling evidence for the claim that people require even eight cups of water a day:
http://www.snopes.com/medical/myths/8glasses.asp
Also, if you're pissing constantly, wouldn't that be evidence that you're trying to over-hydrate yourself? If you were actually dehydrated, wouldn't your body absorb the additional water you drank rather than excreting it?