“Stress causes stomach ulcers.”

For a long time, the prevailing belief was that stomach ulcers were a direct consequence of stress, anxiety, and a fast-paced lifestyle. This idea became deeply ingrained in public consciousness, and even the medical community largely accepted it for decades. The notion seemed to make intuitive sense; many people experienced stomach discomfort during periods of high stress, leading to the assumption that emotional turmoil was literally eating away at their stomach lining.

However, scientific breakthroughs in the 1980s completely revolutionized this understanding. Australian researchers Barry Marshall and Robin Warren bravely challenged the established medical dogma, demonstrating that a bacterium, Helicobacter pylori (H. pylori), was the primary cause of most peptic ulcers. Their groundbreaking work, which earned them a Nobel Prize in 2005, revealed that H. pylori infection damages the protective lining of the stomach and small intestine, making it vulnerable to stomach acid. Additionally, the long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen and aspirin was identified as another major culprit.

Despite this clear scientific evidence, the myth persists because stress undeniably has a noticeable impact on the digestive system. Stress can increase stomach acid production and affect the gut's motility, which can worsen the pain and symptoms of an existing ulcer. Furthermore, under stress, individuals may adopt unhealthy coping mechanisms such as increased alcohol consumption, smoking, or overuse of pain relievers, all of which are known risk factors for ulcer development. It's easy to confuse the aggravation of symptoms with the actual cause, leading many to mistakenly believe that stress alone creates these painful sores.