Have you ever experienced feeling hungry again, just an hour after your big meal? Studies show that 40% of the population can’t tell whether they are really hungry or thirsty. Signals of both hunger and thirst are sent by the same source in the brain–the hypothalamus–and this is why it is so easy to confuse the two.
Hunger: Signs of hunger could include feeling irritable, weak, and moody. It is also important to remember that hunger comes slowly, so if you suddenly find yourself feeling hungry for no apparent reason, then you most probably are just thirsty. Another telling sign of hunger is when your stomach grumbles, or has a hollow feeling.