Originally Posted by Kane

My question is how do you come up with the 2-3L? Is it based on any tangible evidence or is it just a rule of thumb? That's my main issue, everyone says you should drink x amount but nobody says why or why we know this is the magic number. How does my consumption change if I drink x amount of coffee or x amount of beer? How many litres do I need after a hard night of studying and drinking my face off (coffee and beer)

I'm not going to lose any sleep over it at all LOL. I'm just throwing my opinion into the mix because I'd like to see some hard evidence ;)