Church, D., Yount, G., Rachlin, K., Fox, L., Nelms, J. · American Journal of Health Promotion · 2016
PTSD symptoms declined significantly in the EFT group (-53%, p<.00001) with gains maintained at follow-up; significant differential expression of six genes was found (p<.05) comparing before and after the EFT intervention period.
This is a big deal because it pairs a talk-and-tap intervention with actual molecular biology — measuring gene expression change, not a questionnaire. That matters because it's exactly the kind of evidence that could eventually explain, mechanistically, why symptom relief happens in the body, turning 'I feel better' into 'here's what changed in your cells,' which is precisely the kind of evidence that moves skeptical scientists and clinicians.
If tapping really does change gene activity tied to PTSD, it could give skeptical clinicians and veterans themselves a biological, not just self-reported, reason to trust that something measurable is happening in the body during treatment — moving past the idea that it's 'just talk therapy with tapping.' That trust would matter especially because tapping is self-administered: convincing skeptics it's biologically real is what could get more veterans to actually pick up and keep using a tool they can practice on their own.
Six genes differentially expressed alongside a 53% symptom drop is a striking pairing, so the natural next step is identifying exactly which genes and pathways are moving — immune function, glucocorticoid receptor sensitivity, and neuroplasticity-related genes are all plausible candidates in PTSD — in a larger, adequately powered sample. Pairing that with cortisol and inflammatory panels, and testing whether the degree of gene-expression change tracks the number of sessions or symptom severity, could start to build a real dose-response, mechanistic picture.
| Design | Randomized trial |
|---|---|
| Participants | 16 people |
| Population | sixteen veterans with clinical levels of PTSD symptoms |
| Comparison group | treatment-as-usual (TAU) group that later received EFT |
| Outcome measures | messenger RNA levels across a 93-gene panel related to PTSD, SA-45, Hospital Anxiety and Depression Scale, Insomnia Severity Scale, SF-12v2, Rivermead Post-Concussion Symptoms Questionnaire |
| Journal | American Journal of Health Promotion |
| Year | 2016 |
| Country | United States |
| Language | English |
| Method | EFT / tapping |
| Publication type | Study / trial |
| Verification | ✓ Confirmed against the primary source |
Church, D., Yount, G., Rachlin, K., Fox, L., & Nelms, J. (2016). Epigenetic effects of PTSD remediation in veterans using Clinical EFT (Emotional Freedom Techniques): A randomized controlled pilot study. American Journal of Health Promotion. https://doi.org/10.1177/0890117116661154
This record is part of the Tapping Evidence Base — an openly-sourced, fully-referenced directory of the research on EFT/tapping. Explore more studies on PTSD & Trauma · How It Works (Biology)
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