If you own a car, you know that if you fail to give the engine the fresh oil it needs on a regular basis, you engine will be damaged and eventually break down. Water is the oil that your body needs on a daily basis in the correct amounts to function properly. Unlike your car, your body will undertake a program of creative water management to redistribute this essential nutrient to where it is needed most. If you want to see the critical damage water deprivation can do, consult the list of dehydration related diseases . If this does not open your eyes, nothing else will.
Dry mouth is the very LAST sign of dehydration.
Click here for more. Remember that correcting any long standing problem is like turning a ship in the ocean - it does not turn on a dime. It took time for the problem to be created and it will take time for the problem to be cured. If you drink too much water, you pee. If you take the wrong kind of drugs, in the wrong combination, in the wrong dose, you die.