Knoop, Hans, van der Meer, Jos W M, Bleijenberg, Gijs · The British journal of psychiatry : the journal of mental science · 2008 · DOI
This study tested whether simple self-help instructions based on cognitive-behavioural therapy, combined with email support, could help people with ME/CFS. Researchers compared 85 people who received this intervention with 86 people on a waiting list. The results showed that people who received the self-instructions experienced meaningful reductions in fatigue and improved daily functioning, particularly those with less severe symptoms.
This study demonstrates that structured self-help approaches can be effective for ME/CFS patients, particularly those with milder to moderate disease severity. It provides evidence supporting psychological intervention in ME/CFS and offers a scalable, low-cost treatment option that could increase access to care for patients who might not have access to intensive therapy.
This study does not prove that ME/CFS is primarily psychological in origin, nor does it establish that self-instructions work equally well for all patients with ME/CFS—notably, the intervention was less effective for those with more severe disability. The study also does not address whether improvements are sustained long-term or how this intervention compares to other evidence-based treatments.
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
Knoop, Hans, van der Meer, Jos W M, & Bleijenberg, Gijs (2008). Guided self-instructions for people with chronic fatigue syndrome: randomised controlled trial.. The British journal of psychiatry : the journal of mental science. https://doi.org/10.1192/bjp.bp.108.051292
BibTeX
@article{mecfsatlas-knoop-2008-guided-self,
author = {Knoop, Hans and van der Meer, Jos W M and Bleijenberg, Gijs},
title = {Guided self-instructions for people with chronic fatigue syndrome: randomised controlled trial.},
journal = {The British journal of psychiatry : the journal of mental science},
year = {2008},
doi = {10.1192/bjp.bp.108.051292},
note = {PubMed: 18827302},
url = {https://www.mecfsatlas.com/evidence/knoop-2008-guided-self},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-26. https://www.mecfsatlas.com/evidence/knoop-2008-guided-self
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