Effectiveness of distant healing for patients with chronic fatigue syndrome: a randomised controlled partially blinded trial (EUHEALS).
Walach, Harald, Bosch, Holger, Lewith, George et al. · Psychotherapy and psychosomatics · 2008 · DOI
Quick Summary
This study tested whether distant healing (a spiritual healing practice) could help people with ME/CFS. Over 400 patients were randomly assigned to receive healing treatment immediately or wait 6 months, with some patients knowing which group they were in and others kept unaware. After 6 months, the study found no significant improvement in mental or physical health from the distant healing itself, but patients who knew they were receiving treatment and expected to improve actually did feel somewhat better.
Why It Matters
This rigorous RCT addresses a commonly used complementary therapy in ME/CFS populations, providing evidence that distant healing itself does not objectively improve health outcomes. The finding that expectation and blinding significantly influenced results highlights the importance of accounting for placebo effects and psychological factors when evaluating any ME/CFS intervention, and underscores the need for robust trial design.
Observed Findings
No significant difference in Mental Health Component Summary scores between treated and untreated groups over 6 months
Physical Health Component Summary showed non-significant trend favoring treatment (p=0.11, 95% CI -0.255 to 2.473)
Unblinded patients experienced significant deterioration in health (-1.544 points, p=0.027) regardless of treatment allocation
Patient expectation of improvement independently predicted better outcomes
Duration of CFS and treatment expectation significantly contributed to the outcome model
Inferred Conclusions
Distant healing appears to have no statistically significant effect on mental or physical health outcomes in ME/CFS
Blinding is critical in ME/CFS trials; unblinded patients may experience nocebo effects (worsening due to awareness)
Expectation and psychological factors play a significant role in perceived health improvement in this population
Spiritual healing efficacy for ME/CFS cannot be supported by this evidence
Remaining Questions
Why did unblinded patients deteriorate regardless of treatment assignment, and what mechanisms underlie this nocebo effect?
What This Study Does Not Prove
This study does not prove that spiritual or subjective experiences have no value for ME/CFS patients—only that distant healing does not produce measurable improvements in standardized health metrics. It also does not establish whether other forms of spiritual practice, when experienced directly (not at a distance), might have different effects. The study cannot determine whether subtle or qualitative improvements unmeasured by the SF-36 occurred.
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 →