What is an example of a disorder stemming from the digestive system?

Stomach ulcers are indeed an example of a disorder that originates in the digestive system. Specifically, these ulcers are sores that develop on the lining of the stomach or the upper part of the small intestine, often due to an imbalance between stomach acid and the protective lining of the gastrointestinal tract. This condition is primarily linked to factors such as infection with the bacterium Helicobacter pylori, the prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs), and excessive alcohol consumption, all of which pertain directly to the functions and health of the digestive system.

In contrast, heart disease is primarily related to the cardiovascular system, diabetes involves the endocrine system and metabolism, and asthma affects the respiratory system. These distinctions highlight how stomach ulcers, as a disorder, are specifically connected to the digestive system's processes and health. Understanding the specific systems related to various disorders is crucial for effective diagnosis and treatment.