Verhaeghe, J, Van Den Eede, F, Van Den Ameele, H et al. · Tijdschrift voor psychiatrie · 2012
Burnout, depression, and ME/CFS can feel similar, but they work differently in the body. This review looked at how burnout affects the stress hormone system (HPA-axis). Unlike depression, which over-activates this system, burnout appears to weaken it—similar to what happens in ME/CFS. The researchers found that people with burnout have lower stress hormone responses, suggesting burnout is more like exhaustion than depression.
This study is important because it clarifies that burnout and ME/CFS share a similar neuro-endocrine signature—HPA-axis hypofunction—rather than the hyperfunction seen in depression. Understanding this distinction helps researchers identify biological similarities between conditions characterized by exhaustion, potentially informing shared diagnostic biomarkers and treatment approaches for ME/CFS.
This study does not prove that burnout and ME/CFS are the same condition or that they share identical mechanisms. It also does not establish causation or clarify whether HPA-axis hypofunction causes exhaustion or results from it. The reliance on small, heterogeneous studies with mixed cortisol findings means conclusions about burnout's neuro-endocrine profile remain preliminary.
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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