An elderly person’s stomach won’t get smaller if they don’t eat for a long time, but the amount of food they eat will decrease. The size of the stomach is basically the same in adulthood and will not become smaller because of not eating. The stomach has a certain degree of elasticity, which can be adjusted according to the amount of food eaten. If you don’t eat often, your stomach will become less elastic and you will naturally eat less. If you eat too much you may experience uncomfortable symptoms such as bloating, nausea and vomiting. Long-term not eating may be due to the presence of certain diseases, such as stomach tumors can affect the amount of food as well as appetite. Prolonged not eating can also lead to malnutrition and even life-threatening conditions. It is recommended to consult a doctor to analyze the specific condition of an elderly person who does not eat for a long period of time.