The reason people eat is because their satiety centers are begging for attention.

But sometimes, those appetite centers want things for quenching thirst, not filling the stomach. Here's how to figure out what your body is really asking for.

Quench or Crunch?
Thirst could be caused by hormones in the gut that produce feelings much like hunger cravings. To figure out what your body really needs when you feel hungry, drink a glass or two of water. If the craving goes away and you feel more satisfied, you have your answer. For more help with craving control, try these tips.

Satiety Training
Thirst could also be a chemical response to eating; eating food increases the thickness of your blood, and your body senses the need to dilute it. A great way to avoid confusing your hormonal reaction to food is to make sure that your response to thirst activation doesn't contain empty calories -- like the ones in soft drinks or alcohol. Your thirst center doesn't care whether it's getting zero-calorie water or a megacalorie frappé.

To find out how much water you should drink each day, read this article.