Dawson Church, PhD, Foundation for Epigenetic Medicine
Garret Yount, PhD, California Pacific Medical Center (CPMC) Research Institute
Audrey Brooks, PhD, Psychology Department, University of Arizona at Tucson
Citation (APA Style): Church, D., Yount, G., & Brooks, A. J. (2012). The effect of Emotional Freedom Techniques (EFT) on stress biochemistry: A randomized controlled trial. Journal of Nervous and Mental Disease, 200(10), 891-896. doi:10.1097/NMD.0b013e31826b9fc1
This study examined the changes in cortisol levels and psychological distress symptoms of 83 non-clinical subjects receiving a single hour long intervention. Subjects were randomly assigned to either an EFT group, a psychotherapy group receiving a supportive interview (SI), or a no treatment (NT) group. Salivary cortisol assays were performed immediately before, and thirty minutes after the intervention. Psychological distress symptoms were assessed using the SA-45. The EFT group showed statistically significant improvements in anxiety (-58.34%, p<0.05), depression (-49.33%, p<0.002), the overall severity of symptoms, (-50.5%, p<0.001), and symptom breadth (-41.93%, p<0.001). The EFT group experienced a significant decrease in cortisol (-24.39%, SE 2.62) compared to the decrease observed in the SI (-14.25%, SE 2.61) and NT (-14.44%, SE 2.67) groups (p<0.03). The decrease in cortisol levels in the EFT group mirrored the observed improvement in psychological distress.
Keywords: Cortisol, stress, depression, anxiety, physiology, EFT, Emotional Freedom Techniques