Answer:
When a person's stomach is full and distended, people experience little to no hunger. By the time the stomach empties 60% of its contents, however, people begin to report the first signs of hunger.
Step-by-step explanation:
When the stomach empties 60 % of its contents ( has been empty for about two hours ) it starts contraction resulting in sweeping the remaining contents (food) into the intestines. This process of rumbling is referred as borborygmus.
As the food enters the intestines , the cells in the stomach and intestines produce a hormone called ghrelin (amount of ghreilin released is directly propotional to the emptiness of stomach ) which ultimately triggers the feeling of hunger.