What will happen when the body loses water?

When you are dehydrated, your cells try to take water from other parts of the body. The problem is, then those selfish parts take all of it leaving another part of the body in need of water. This happens until all of the bodies water it almost used up. Then the organs start shutting down, but by this point you should either A. Be passed out and dying or B. In the hospital. So basically, Drink water. LOTS and LOTS and LOTS of water.