In the context of my personal reading I will say that life stress is known to interfere with the process of wound healing, which may contribute to the poor prognosis of ulcers in patients who are chronically anxious or experiencing a particularly difficult period. Psychological factors may directly disrupt a long-standing equilibrium between Helicobacter and its host, both because Helicobacter pylori flourishes in the presence of high acid levels and, conceivably, by affecting immune defenses against Helicobacter (Levenstein, 2002a).
Stress can also promote ulcer formation indirectly, by influencing behavior. Many behavioral patterns associated ...