Yeah, it's responsible for so many things water shortage. One of the big ones is dizziness. If you're dizzy, drink water. I used to have a great habit of drinking loads of water but when I started working in an office, I stopped drinking so much, because we were timed when we left our desk.
I recently saw something about water affecting the skin. If cells are occupying less volume then they should, due to a shortage of water, I believe that your skin can get wrinkled.