Re: Why does your stomach rumble when you are hungry?

Dear Eva,

That's a very good question. I found the following answer for you at www.uselessknowledge.com.

The medical term is called borboygmus,  (it is pronounced bor·bo·ryg·mus)
and it is defined as the  intestinal rumbling caused by moving gas. Your 
stomach starts to growl when your stomach walls squeeze together in an 
attempt to mix and digest food and there's no food there. Gases and 
digestive juices slosh around in your empty stomach and before you know 
it - borborygmi.

Yet hunger really has nothing to do with an empty stomach but, instead, is 
a product of certain nutrients missing in the blood. Our brains contain 
a "hunger center," which functions as an accelerator, or as a brake, for 
our stomachs and intestines. Once necessary nutrients are lacking from the 
blood, the dinner bell is rung, and the stomach and intestines come 
rumbling.

The now active stomach and intestine aren't picky as to what foods will 
satisfy they, and will grab anything they can. It is the role of the 
appetite to rein them in, and to ensure that the growling duo are 
satisfied, but with a healthy balance of the proper nutrients.

If ever in a situation where borborygmi kicks in, and there is no food in 
sight, remember to remain calm. The calmer you are, the more slowly your 
body will metabolize the protein it has stored, and the longer you will 
live!

Best wishes,
Elsa