The Autonomic Maintenance Model of Chronic Disease: A Threat-State and Tissue-Loading Hypothesis

This document presents a ranked and falsifiable causal hypothesis for a defined subset of chronic illnesses. It is not offered as established science, proposed for all chronic diseases, or intended to replace tissue-directed diagnosis or standard care. The model asks whether some chronic diseases persist because patterned autonomic and related neuroendocrine output keeps affected tissue in an abnormal operating state, even when the most visible downstream abnormalities are not the highest-leverage current maintainer. It focuses on illnesses characterized by chronic stabilization, flares, partial remissions, impaired recovery, and sometimes a disproportion between the apparent trigger and the chronic outcome. The strongest near-term claim concerns tissue loading: selected tissues may be kept outside their tolerable operating range by patterned autonomic and neuroendocrine output. Altered perfusion, impaired repair, barrier dysfunction, immune findings, microbial shifts, endocrine instability, sensitization, fibrosis, symptoms, biomarkers, and structural changes may consequently function as downstream effects, amplifiers, modifiers, or residues, depending on disease and stage. The fuller hypothesis proposes that persistent or easily re-triggered defensive control may be an upstream source of this output, potentially involving explicit or implicit threat appraisal. This is a biological control-chain hypothesis—not a claim that disease is imaginary, voluntary, caused by ordinary stress, or adequately treated through psychological explanation. The paper specifies causal ranks, scope and exclusions, rival explanations, measurement requirements, intervention logic, and prospective falsification criteria. It proposes testing the tissue-loading layer first and the upstream appraisal layer separately, allowing the model to fail, narrow to an autonomic-maintenance hypothesis, or gain support according to prespecified results.