Bell, I R, Baldwin, C M, Russek, L G et al. · Journal of women's health · 1998 · DOI
This study looked at whether women with chemical sensitivity (difficulty tolerating everyday chemicals) had experienced more childhood stress or difficult relationships with their fathers compared to women with depression alone or women without these conditions. The researchers found that women with chemical sensitivity had weaker relationships with their fathers and showed signs of nervous system overactivity. The study suggests that repeated exposure to stress early in life might train the nervous system to react more strongly to chemicals and other triggers.
This research is relevant to ME/CFS because chemical sensitivity is a recognized symptom in many ME/CFS patients, and understanding the underlying mechanisms may help explain why the nervous system becomes sensitized in ME/CFS. The study provides a testable biological model—neural sensitization—that could apply to how ME/CFS symptoms develop and progress, particularly in patients with trauma histories.
This study does not prove that early stress or poor paternal relationships *cause* chemical sensitivity; it only shows associations in a small sample. The cross-sectional design prevents determining whether sensitization preceded CI symptoms or developed afterward. The findings in this small group of middle-aged women may not generalize to other populations or to specific ME/CFS diagnostic criteria, and the study does not establish that neural sensitization is the primary mechanism in all CI or ME/CFS patients.
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 →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Bell, I R, Baldwin, C M, Russek, L G, Schwartz, G E, & Hardin, E E (1998). Early life stress, negative paternal relationships, and chemical intolerance in middle-aged women: support for a neural sensitization model.. Journal of women's health. https://doi.org/10.1089/jwh.1998.7.1135
BibTeX
@article{mecfsatlas-bell-1998-early-life,
author = {Bell, I R and Baldwin, C M and Russek, L G and Schwartz, G E and Hardin, E E},
title = {Early life stress, negative paternal relationships, and chemical intolerance in middle-aged women: support for a neural sensitization model.},
journal = {Journal of women's health},
year = {1998},
doi = {10.1089/jwh.1998.7.1135},
note = {PubMed: 9861591},
url = {https://www.mecfsatlas.com/evidence/bell-1998-early-life},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-26. https://www.mecfsatlas.com/evidence/bell-1998-early-life
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