Why can a person live without stomach?

It is not possible for a person to live without a stomach. The stomach is a vital organ that plays a crucial role in the digestive process. It serves several important functions, including:

1. Digestion: The stomach secretes gastric juices, which contain hydrochloric acid and enzymes such as pepsin, that break down food and initiate the digestion of proteins. The stomach also churns the food, physically breaking it down into smaller particles.

2. Absorption: The stomach lining contains specialized cells that absorb certain nutrients, such as water, electrolytes, and some drugs.

3. Regulation of food intake: The stomach helps regulate food intake by producing hormones such as ghrelin and leptin, which signal hunger and satiety, respectively.

4. Storage: The stomach acts as a temporary storage reservoir for food, allowing for gradual release into the small intestine.

Without a stomach, a person would be unable to properly digest food, absorb essential nutrients, and regulate their appetite. This would lead to severe malnutrition, weight loss, and eventually death.

While certain medical conditions, such as gastric cancer, may require the removal of a portion or all of the stomach, these individuals typically undergo surgical procedures to reconstruct the digestive tract or receive specialized medical care to manage the absence of a stomach. However, living without a stomach entirely is not compatible with long-term survival.