Woolley, James, Allen, Roz, Wessely, Simon · Journal of psychosomatic research · 2004 · DOI
This study looked at how people with ME/CFS relate to alcohol. Researchers surveyed 114 patients and found that about two-thirds reduced or stopped drinking alcohol after getting ME/CFS. The main reasons were that alcohol made their tiredness worse (67%), caused more nausea (33%), made hangovers worse (23%), and disturbed sleep (24%). Most people made this decision based on their own experience rather than medical advice.
This study provides evidence for a commonly reported but poorly understood symptom in ME/CFS—alcohol intolerance—helping validate patient experiences. Understanding alcohol sensitivity in ME/CFS may guide clinical counselling and could provide clues about underlying metabolic or neurological mechanisms in the disease.
This study cannot prove that alcohol intolerance is caused by ME/CFS pathology rather than learned avoidance behaviour or secondary factors like reduced activity levels. The self-reported nature of the data and lack of objective measurements of alcohol sensitivity (e.g., metabolic markers, controlled challenge testing) mean we cannot determine the biological mechanism behind reported intolerance. Correlation between reduced alcohol use and greater functional impairment does not establish which causes which.
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
Woolley, James, Allen, Roz, & Wessely, Simon (2004). Alcohol use in chronic fatigue syndrome.. Journal of psychosomatic research. https://doi.org/10.1016/S0022-3999(03)00077-1
BibTeX
@article{mecfsatlas-woolley-2004-alcohol-use,
author = {Woolley, James and Allen, Roz and Wessely, Simon},
title = {Alcohol use in chronic fatigue syndrome.},
journal = {Journal of psychosomatic research},
year = {2004},
doi = {10.1016/S0022-3999(03)00077-1},
note = {PubMed: 15016579},
url = {https://www.mecfsatlas.com/evidence/woolley-2004-alcohol-use},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-29. https://www.mecfsatlas.com/evidence/woolley-2004-alcohol-use
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