What changes in the body during and after Tapping, from the peer-reviewed research.
A one-page overview of the peer-reviewed research, prepared for discussion with a healthcare provider. The Tapping Evidence Base · July 2026
Bottom line. A 2015 meta-analysis (Gilomen et al., 18 trials of acupoint-stimulation techniques including EFT) found a moderate pooled effect on psychological distress versus control (Hedges' g = -0.66, 95% CI -0.99 to -0.33). Heterogeneity was high (I²≈81%), and the authors flagged as unresolved whether acupoint stimulation itself — rather than the exposure and cognitive elements common to many therapies — drives the effect. Tapping's specific mechanism remains an open question.
| Study | Design | Journal | Effect |
|---|---|---|---|
| Church, D., Yount, G. et al. (2012)
After a single one-hour session, the EFT group showed a 24. | Mechanism study, N=83 | Journal of Nervous and Mental Disease | |
| Stapleton, P., Crighton, G. et al. (2020)
Cortisol fell 43. | Mechanism study, N=53 | Psychological Trauma: Theory, Research, Practice, and Policy | |
| Wittfoth, D., Beise, J. et al. (2022)
A one-time bifocal-multisensory intervention combining acupoint tapping with attention to feared images was associated with… | Mechanism study, N=29 | NeuroImage: Clinical | |
| Maharaj, M.E., et al. (2016)
A pilot study comparing an hour-long EFT session with placebo in 4 non-clinical participants found differential expression in 72… | Mechanism study, N=4 | Energy Psychology: Theory, Research, and Treatment | |
| Swingle, P.G. (2010)
QEEG assessment found that adding EFT increased sensorimotor rhythm (SMR) amplitude, a brainwave pattern relevant to seizure… | Mechanism study | Energy Psychology: Theory, Research, and Treatment | |
| Babamahmoodi, A., Arefnasab, Z. et al. (2015)
Mixed effect linear models showed EFT improved mental health (F=79. | Randomized trial, N=28 | Iranian Journal of Allergy, Asthma and Immunology | |
| König, N., Steber, S. et al. (2019)
Both a single EFT-based tapping session and a single PMR session were followed by significant reductions in self-reported anxiety… | Randomized trial, N=22 | Brain Sciences | |
| Stapleton, P., Buchan, C. et al. (2019)
Food craving scores decreased 18% in the EFT group versus 5% in controls, with fMRI showing relative deactivation in brain… | Randomized trial, N=15 | OBM Integrative and Complementary Medicine | Cohen's d = -0.52 |