🔬 Medical science
The stomach secretes acid and enzymes that begin protein digestion and kill many ingested microbes. Its lining is protected by a mucus layer.
Most peptic ulcers and gastritis are caused by Helicobacter pylori infection and by NSAID use; stomach cancer is associated with chronic H. pylori, smoking, salt-heavy diet, and genetic factors. Diagnosis includes endoscopy, biopsy and breath/stool tests for H. pylori; treatment uses acid suppression and antibiotic eradication.
🧩 The GNM model
Claimed conflict: GNM attributes stomach conditions (especially of the lesser curvature) to "indigestible anger" — a territorial-anger conflict, something one literally "cannot stomach."
Germ layer & brain relay (GNM model): GNM classes the stomach's lesser-curvature mucosa as ectoderm controlled from the cerebral cortex, while the greater curvature is treated as endoderm controlled from the brainstem.
Two-phase course (claimed): GNM claims the ectodermal lesser curvature ulcerates during the conflict-active phase and swells with inflammation (gastritis-like) during healing, whereas endodermal portions are said to proliferate in activity and break down in healing.
⚖️ Critical analysis
The discovery that H. pylori causes most peptic ulcers (Nobel Prize, 2005) directly refutes a purely emotional cause and is reproducible worldwide; eradicating the bacterium cures the ulcer. Stress can aggravate symptoms but is not the root cause.
GNM's germ-layer split and "brain relay" have no embryological or neurological basis and no controlled support.