hungry

As against the common belief , hunger has nothing to do with an empty stomach. Hunger actually begins when certain nutritive materials are missing in the blood.

When the blood vessels lack these materials, a message is sent to a part of the brain that is called the hunger centre . This centre makes the stomach and intestine more active , that is why a hungry person often hears his stomach rumbling.

When we are hungry, our body does not crave for any special kind of food. It just wants nourishment.

But our appetite sees to it that we do not satisfy our hunger with just one food, which would be unhealthy .

How long a person can live without food, varies from individual to individual. A very calm person can live longer without food than an excitable one, because the protein stored up in his body is used up more slowly than in the excitable man.