No, I didn't just get it from snopes. I've seen most of that info in other places, too.
Mostly, I just don't believe it. It's possible that extra liquid has benefits, but that doesn't mean we are dehydrated. In the good ol' days of every day before about 1988, no one carried water bottles around and worried about drinking so much. We drank when we were thirsty. Now we're told that if we feel thirsty, it's too late, we should have had a drink an hour ago.
I've tried the drink-a-lot experiment. I just had to walk to the men's room a lot more. But, only for quick trips. It didn't effect #2.
And, speaking of #2, where do you get that definition for constipation? I'm thinking it's not really frequency related.
CONSTIPATION.
Jeez. This is the worst thread hijack EVER!