Could I just be thirsty?

Sonja's post about drinking more water made me think about the way our bodies handle hunger and thirst. Our bodies have developed signals to let us know when we need food or water... our bellies growl, our mouths feel dry... but what about all of the not so extreme signals. You know what I'm talking about... the little craving that makes us walk through the kitchen looking for something... anything to stick in our mouths. Thirst and hunger are actually triggered in the same parts of the brain and the first signals are the same... a craving. So maybe... we aren't so hungry, maybe we just need a drink of water!!