There’s no scientific evidence supporting the existence of the energy field thought to play a role in Reiki.
Reiki: What is it and how does it help? - Quack Track
Reiki: Universal Energy or Hands-Off Hoax, 348 - Hysteria 51 (podcast)
Evidence-Based Medicine: Literature Reviews
Disadvantages of Reiki Energy Therapy: Are There Any?
Science and Non-local Healing Phenomena, by Timothy Grossman, BS, RMT, CMT-P
Reiki: Universal Energy or Hands-Off Hoax, 348 - Hysteria 51 (podcast)
Reiki And Body Energy: How To Heal Your Body With The Power Of Reiki And Its Healing Energy by Thomas Sophia Isabella, eBook
Building a Reiki and Healing Touch volunteer program at an Academic Medical Center - ScienceDirect
Medical Reiki Master Pioneer Pamela Miles in the Media
John Hoolahan, Pharm.D., RPh, Reiki Master Teacher - Pharmacist - CVS Health
Reiki Research, Medical, Clinical Reiki Research
Protecting Reiki from Regulation: What You Can Do Now
Healing Modalities & Methods
How Does Reiki Differ from Other Energy Modalities
Shamanic Reiki Spiritual Counseling