Your body can go for a long time with out food, but not with out water. We are sick with out it. I sometimes get migraine headaches, but when I drink water at the first sign of the headache, it greatly diminishes the intensity. This makes sense when you remember that our bodies are largely made up of water. Your body is absolutely craving it. In a big way. Not sugar-water. Your body is not made up of sugar. Just drink pure refreshing water. I know, it seems too simple to be true. But it's a beautiful truth.