"Good-for-nothing" is often used to describe someone lazy and gluttonous, not exactly a compliment. Yet our stomach truly is a "good-for-nothing" organ—all food consumed must first be stored here before being digested and absorbed by the body. Next, we'll explore how healthy habits can protect our stomachs.
The stomach is the largest hollow organ in the digestive system, located in the upper abdomen. It has two openings: the upper entrance called the "cardia" and the lower exit known as the "pylorus." Its total capacity ranges from 500 to 1500 milliliters. The stomach wall consists of four layers from inner to outer: the mucosa, submucosa, muscularis, and serosa.The gastric mucosa forms undulating folds resembling "meat" ridges. Like the teeth of a millstone, these ridges grind and churn food during gastric peristalsis. They also secrete copious amounts of mucus, gastric acid, and digestive enzymes. This process subjects food not only to physical changes but also to biochemical transformations within the stomach.
The stomach wall secretes large amounts of gastric acid daily. Its primary function is to break down large protein molecules into smaller amino acids for absorption and utilization, while also possessing strong bactericidal properties. Yet this very gastric acid serves as both the stomach's guardian and its destroyer.Because gastric acid is highly corrosive to the stomach lining, the reason the stomach wall of a healthy person remains intact is due to a thick layer of gastric mucus barrier. However, if this barrier is damaged, gastric acid can penetrate freely, destroying the mucosal layer, submucosal layer, and muscular layer, forming ulcers that can lead to gastric bleeding, perforation, or even gastric cancer.
Therefore, preventing ulcers requires protecting this gastric mucosal barrier. First, avoid consuming contaminated food. Although the stomach possesses potent bactericidal capabilities, these are limited. Ingesting large quantities of contaminated food can overwhelm the stomach acid's ability to neutralize bacteria and toxins, allowing pathogens to be absorbed by the body and causing illness—a common occurrence in food poisoning.Second, maintain regular eating patterns. The stomach continuously contracts and relaxes. Prolonged periods without food after gastric emptying cause the stomach to "grind empty," where constantly secreted gastric juices lack food to digest and instead erode the stomach lining, damaging the mucosal barrier. Third, practice moderation in eating—avoid excessive or uncontrolled consumption.By cultivating sound dietary and lifestyle habits, we can effectively protect our stomachs!
This concludes our introduction on how healthy habits safeguard our stomachs. We trust you now have a clearer understanding. Finally, we sincerely wish you robust health and joyful living.