Water ... water ... why?

Everyone is always posting about how hard it is to get in their daily Water quotient. And some wind up in the hospital with dehydration. I wonder why this happens?

Before this kind of surgery, most people don't make any effort to drink a certain amount of water. What is it about this surgery that makes water so important. I gotta tell you I am a concerned pre-op. Currently, I am bedridden because with arthritic pain and to prevent myself from falling. I am one of the big ones - nearly 400 lbs. and balance is a real issue with me.

So what's this obsession with water? Why do we have to drink so much? What do you do to help get yours in? Does anyone eat their water? What fruits and vegetables with a high water content contribute to your daily need? Has anyone had a bad experience because they didn't drink enough water?

Water ... water ... everywhere ... and not (just) a drop to drink. More like a gallon!