Miller, C S · Addiction (Abingdon, England) · 2001 · DOI
This paper proposes a new theory called TILT (toxicant-induced loss of tolerance) that suggests the body can lose its ability to tolerate certain exposures—whether drugs or environmental chemicals—in similar ways. The author argues that both addiction and chemical sensitivity involve the same underlying breakdown in how the body normally handles these substances, which could help explain ME/CFS, fibromyalgia, and other chronic illnesses.
This framework is important for ME/CFS patients and researchers because it offers a potential biological explanation for how exposure to chemicals or other triggers might trigger and perpetuate the condition. The TILT model could help explain why some ME/CFS patients experience worsening symptoms with exposure to specific substances and may open new research and treatment avenues by connecting ME/CFS to established mechanisms in toxicology and neurobiology.
This editorial is a theoretical proposal, not an empirical study, so it does not present original experimental or clinical data proving TILT occurs in ME/CFS patients. The paper does not establish that loss of tolerance is the primary or only mechanism in ME/CFS, nor does it prove causality between specific exposures and symptom onset. It remains speculative whether the mechanisms underlying addiction and chemical intolerance are truly identical.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
Spotted an error in this entry? Report it →