I went on to do a bit of research and found
just wanted to generate a healthy debate about it and see what you all think...
here is the article in case it dissapears:
Do we really need eight to ten glasses per day?
by Paul Ingraham, Registered Massage Therapist (Vancouver)
They say that that you and I should drink eight glasses of water a day for optimum health. The origins of this "wisdom" are shrouded in mystery. It is known by the “eight by eight” rule among nutritionists: eight glasses, eight fluid ounces each is supposedly what the average person needs to drink every day to remain healthy and hydrated. The claim is repeated by everyone, but no one knows where it comes from or what the basis for it is.
Moreover, hardly anyone drinks that much water, as far as I can tell from asking my clients, and yet just about everyone feels guilty about it and believes that they are probably “chronically dehyrdated” with unknown but ominous consequences! Could this be? After studying the question, some interesting facts stand out clearly:
I am unable to find any scientific research which either supports or contradicts the claim. If anyone has ever carefully compared the health of people who drink water to people who don’t, I can’t find their report, and neither can anyone else. It is a debate without science.
Dr. Batmanghelidj’s popular quackery
People who support the claim tend to be evangelical about it, but offer no scientific evidence. And they are often selling something. In the service of this goal, advertisements usually cite the work of F. Batmanghelidj, M.D., a quack who claims that most people are suffering from conditions like asthma, arthritis and chronic fatigue syndrome due to chronic dehydration.1 In 1995, he published a book called Your Body’s Many Cries for Water, and his ideas now dominate the discussion to a surprising degree. In fact, you can't really read anything about the subject without stumbling across his claims in one form or another.
Not a shred of evidence
At first, Dr. Batmanghelidj’s ideas seem quite appealing. Unfortunately, his book doesn’t present a shred of scientific evidence and is poorly written to boot — I even found a website for professional editors that used an excerpt from the book as an example of “a particularly miserable paragraph!”2 Moreover, Dr. Batmanghelidj’s website is a marvel of modern marketing, making outrageous claims and clearly designed to sell his “miracle cure” program. A link to “Scientific Information on Dehydration” leads to testimonials for his “miracle water cure,” and a link to a “Medical Report” takes browsers to a 9000-word sales letter — a classic and effective marketing format known as “long copy” — littered with hype, conspiracy theories, and empty promises.
Most people encounter Dr. Batmanghelidj’s ideas in the form of a piece of widely circulated internet junk mail that begins by saying, “75% of Americans are chronically dehydrated.” According to whom? The statistics are a summary of the keys points of Dr. Batmanghelidj’s book, and are probably entirely speculative (if there is a credible source for the statistics, I’d love to hear about it). Snopes.com, a website devoted to debunking netlore and urban legends, dismisses this one as having no basis in fact.
The other side of the story
People who contradict the claim tend to be less colourful than Dr. Batmanghelidj’s fans. They dismiss the claim as nonsense and offer a scientific rationale for the skepticism — but still no evidence, unfortunately3 . The best of all the skeptical articles I found on the subject — “Hard to Swallow,”4 by Benedict Carey of the Los Angeles Times — has been widely reprinted. Unfortunately, it relies only on expert testimony. My impression is that the nutritionists he quotes are guessing right along with the rest of us. However, I am more inclined to listen to their advice than Dr. Batmanghelidj’s.
When I was training as a massage therapist, I was often urged by my teachers to encourage my clients to drink plenty of water, as though this was vital to their health and a pearl of wisdom for me to pass on. I hardly need to: seemingly everyone already believes it. However, almost no one actually does it. Generally speaking, people seem to find it very uncomfortable and inconvenient to drink that much water in a day. They chronically fail to do so… and feel guilty about it.
The appeal is obvious
The appeal of the “water cure” is obvious. It is simple, cheap, and offers the hope of optimizing health without the inconvenience of exercise or an otherwise healthy diet. Furthermore, what could go wrong? Why not drink that much water?
There probably isn’t any medical harm in it, as long as you don't really go overboard. But it will waste your time, your money (if you are devoted to bottled water), and your peace of mind. It is an unecessary worry, in a world full of problems more worthy of your attention. Except as a point of scientific curiosity, there isn’t any need to wonder whether or not you are being held back by chronic dehydration. The only person who thinks you are dehydrated is a snake oil salesman of the worst type, who only wants you to buy his book and his miracle cure program. Consider that before you drink your next gratuitous and optimistic glass of water!
Edit - be sure to read the snopes article linked to the bottom as well. unfortunately you have to sign up to read the LA times one. (me too lazy to do that)
Edit 2 - oh snap! i found an article that says too much water can kill you! LOL
btw i also fould like 2154233069695 articles that say drink 8+ glasses of water a day... (just trying to keep things in prespective)
btw 2 - i am drinking water right now :O