It has been a common thought that stress was a direct cause of ulcers (“Stomach and Duodenal Ulcers (Peptic Ulcers)”, n.d.). Ulcers were thought to have been initiated by an increase in stomach acid, which would eat away at the mucosa of the stomach or other areas of the digestive tract until a break in the mucosa was formed and the stomach wall was then exposed directly to the acid, causing pain. Stress was blamed because stress had been thought to increase stomach acid production (Iliades, n.d.).
Recent studies suggest that upwards of 80%-90% of all ulcers are due to bacterial infections of the stomach or other areas of the GI tract (“Stomach and Duodenal Ulcers (Peptic Ulcers)”, n.d.). Barry J. Marshall and