Research demonstrates the clinical evidence for Reiki Therapy. In fact, if you had searched for the word “Reiki” in the biomedical literature as of the date of this post, you would have found 259 research studies cited. Following is a limited sampling of some the beneficial outcomes documented in research studies that have used Reiki Therapy as a treatment intervention.
Most notable, there have been NO negative side effects or risks identified in any of the research studies on Reiki Therapy. Reiki is non-invasive and has been classified as a “very low risk intervention.” A recent study determined that Reiki Therapy was safe even for newborns.
A number of studies have focused on assessing the use of Reiki to mitigate the physical and emotional side effects of cancer diagnosis and treatment. To date, studies focused in the area of oncology have consistently measured these statistically significant outcomes following Reiki Therapy:
In the medical/surgical arena, Reiki Therapy has been used as a treatment pre and post-surgery and for chronic medical conditions and pain. These studies include measuring outcomes with Reiki Therapy as an intervention for knee replacement surgery, cesarean sections, hysterectomies, colonoscopies; following an acute coronary syndrome event; as well as for those receiving hemodialysis and those with HIV. Some of the statistically significant outcomes documented by these research studies include:
In 20 years as a Reiki Therapy
practitioner, I have observed first-hand how my clients often report experiencing
such benefits. And due to the beneficial
outcomes that have been shown, almost every study concludes that more research should
be done on Reiki Therapy. However
research funding is lacking to do the larger, more standardized studies that would
be required to further substantiate the effectiveness of this gentle therapy.
 Safety of Reiki Therapy for Newborns at Risk for Neonatal Abstinence Syndrome. Radziewicz RM1, Wright-Esber S, Zupancic J, Gargiulo D, Woodall P. 2018
 The effects of Reiki Therapy on pain and anxiety in patients attending a day Oncology and Infusion Services Unit.
Birocco N, Guillame C, Storto S, Ritorto G, Catino C, Gir N, Balestra L, Tealdi G, Orecchia C, Vito GD, Giaretto L, Donadio M, Bertetto O, Schena M, Ciuffreda. 2012
 Pilot crossover trial of Reiki versus rest for treating cancer-related fatigue. Tsang KL, Carlson LE, Olson K. 2007
 The effect of Reiki therapy on quality of life of patients with blood cancer: Results from a randomized controlled trial. Alarcao, Z. and Fonseca, J. 2016
 A phase II trial of Reiki for the management of pain in advanced cancer patients. Olson K, Hanson J, Michaud M. 2003
 Integrative Reiki for cancer patients: a program evaluation. Fleisher KA, Mackenzie ER, Frankel ES, Seluzicki C, Casarett D, Mao JJ. 2014
 Effects of Reiki on Pain, Anxiety, and Blood Pressure in Patients Undergoing Knee Replacement: A Pilot Study.
Baldwin AL, Vitale A, Brownell E, Kryak E, Rand W. 2017
 Effects of Reiki on Pain and Vital Signs When Applied to the Incision Area of the Body After Cesarean Section Surgery: A Single-Blinded, Randomized, Double-Controlled Study. Sagkal Midilli T, Ciray Gunduzoglu N. 2016
 The effect of Reiki on pain and anxiety in women with abdominal hysterectomies: a quasi-experimental pilot study. Vitale AT, O’ConnornPC. 2006
 Reiki as a pain management adjunct in screening colonoscopy. Bourque AL, Sullivan ME, Winter MR, 2012
 Effects of Reiki on autonomic activity early after acute coronary syndrome. Friedman RS, Burg MM, Miles P, Lee F, Lampert R. 2010
 Reiki for Pain during Hemodialysis: A Feasibility and Instrument Evaluation Study. Zins S, Hooke MC, Gross CR.
 Effects of Reiki With Music Compared to Music Only Among People Living With HIV. Bremner MN, Blake BJ, Wagner VD, Pearcey SM. 2016