Jones, Chloe Lisette, Haskin, Olivia, Younger, Jarred Wayne · International journal of environmental research and public health · 2024 · DOI
This study looked at whether weather and air quality affect pain and fatigue in women with ME/CFS. Fifty-eight women tracked their daily pain and fatigue levels for about 2 months while researchers compared their symptoms to local weather and air pollution data. The results showed that worse air quality, lower wind speeds, and higher levels of certain pollutants were linked to days when patients experienced more pain and fatigue.
Patients with ME/CFS have long reported anecdotal connections between environmental conditions and symptom flares, but this is the first study to scientifically validate these observations. Understanding environmental triggers could help patients predict symptom changes and better manage their condition through planning and lifestyle adjustments.
This study demonstrates correlation, not causation—meaning air quality changes and symptoms occur together, but the study cannot prove that one directly causes the other. The small effect sizes suggest that while these environmental factors are statistically associated with symptoms, they explain only a small portion of symptom variability. The findings apply only to women in one geographic region and may not generalize to other populations or climates.
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 →
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