Will the stomach get smaller and smaller?

The stomach does not get smaller when hungry.

When hungry, the stomach does not get smaller. The stomach is a hollow organ, and the well-developed stomach does not change volume due to external forces. Hunger is usually caused by stomach contraction and hormone secretion in the intestinal tract. On an empty stomach, the gastrointestinal tract produces a hormone called motilin, which stimulates the contraction of the gastrointestinal tract, causing the stomach wall to contract, causing hunger. In addition, gastric juices may begin to increase on an empty stomach, which can also cause some discomfort. These physiological processes send signals to the brain that the body needs energy and nutrients, but do not make the stomach hungry.