US Government and Reiki

Within National Institute for Health is the Federal Government's lead agency for research on complementary and alternative medicine (CAM). This agency is known as the National Center for Complementary and Alternative Medicine (NCCAM). They have background information sheets on a number of complementary and alternative healing modalities including Reiki. Read it for yourself below. NCCAM documents are not copyrighted and distribution is encouraged, so this makes a great beginning Reiki information sheet for you or your clients.

Excerpts from The NCCAM Background on Reiki

Reproduced below is the main content from the Reiki health information provided by NCCAM. The full document can be seen on the NCCAM website. A PDF version is also available for download.

Reiki: An Introduction


Reiki is a healing practice that originated in Japan. Reiki practitioners place their hands lightly on or just above the person receiving treatment, with the goal of facilitating the person's own healing response. In the United States, Reiki is part of complementary and alternative medicine (CAM). This fact sheet provides a general overview of Reiki and suggests sources for additional information.

Key Points

- People use Reiki to promote overall health and well–being. Reiki is also used by people who are seeking relief from disease–related symptoms and the side effects of conventional medical treatments.
-Reiki has historically been practiced as a form of self–care. Increasingly, it is also provided by health care professionals in a variety of clinical settings.
-People do not need a special background to learn how to perform Reiki. Currently, training and certification for Reiki practitioners are not formally regulated.
-Scientific research is under way to learn more about how Reiki may work, its possible effects on health, and diseases and conditions for which it may be helpful.
-Tell your health care providers about any complementary and alternative practices you use. Give them a full picture of what you do to manage your health. This will help ensure coordinated and safe care.


The word “Reiki” is derived from two Japanese words: rei, or universal, and ki, or life energy. Current Reiki practice can be traced to the spiritual teachings of Mikao Usui in Japan during the early 20th century. Usui's teachings included meditative techniques and healing practices. One of Usui's students, Chujiro Hayashi, further developed the healing practices, placing less emphasis on the meditative techniques. An American named Hawayo Takata learned Reiki from Hayashi in Japan and introduced it to Western cultures in the late 1930s.

The type of Reiki practiced and taught by Hayashi and Takata may be considered traditional Reiki. Numerous variations (or schools) of Reiki have since been developed and are currently practiced.


Reiki is based on the idea that there is a universal (or source) energy that supports the body's innate healing abilities. Practitioners seek to access this energy, allowing it to flow to the body and facilitate healing.

Although generally practiced as a form of self–care, Reiki can be received from someone else and may be offered in a variety of health care settings, including medical offices, hospitals, and clinics. It can be practiced on its own or along with other CAM therapies or conventional medical treatments.

In a Reiki session, the client lies down or sits comfortably, fully clothed. The practitioner's hands are placed lightly on or just above the client's body, palms down, using a series of 12 to 15 different hand positions. Each position is held for about 2 to 5 minutes, or until the practitioner feels that the flow of energy–experienced as sensations such as heat or tingling in the hands–has slowed or stopped. The number of sessions depends on the health needs of the client. Typically, the practitioner delivers at least four sessions of 30 to 90 minutes each. The duration of Reiki sessions may be shorter in certain health care settings (for example, during surgery).

Practitioners with appropriate training may perform Reiki from a distance, that is, on clients who are not physically present in the office or clinic.


According to the 2007 National Health Interview Survey, which included a comprehensive survey of CAM use by Americans, more than 1.2 million adults had used an energy healing therapy, such as Reiki, in the previous year. The survey also found that approximately 161,000 children had used an energy healing therapy in the previous year.

People use Reiki for relaxation, stress reduction, and symptom relief, in efforts to improve overall health and well-being. Reiki has been used by people with anxiety, chronic pain, HIV/AIDS, and other health conditions, as well as by people recovering from surgery or experiencing side effects from cancer treatments. Reiki has also been given to people who are dying (and to their families and caregivers) to help impart a sense of peace.

Effects and Safety

Clients may experience a deep state of relaxation during a Reiki session. They might also feel warm, tingly, sleepy, or refreshed.

Reiki appears to be generally safe, and no serious side effects have been reported.

Training, Licensing, and Certification

No special background or credentials are needed to receive training. However, Reiki must be learned from an experienced teacher or a Master; it cannot be self–taught. The specific techniques taught can vary greatly.

Training in traditional Reiki has three degrees (levels), each focusing on a different aspect of practice. Each degree includes one or more initiations (also called attunements or empowerment). Receiving an initiation is believed to activate the ability to access Reiki energy. Training for first– and second–degree practice is typically given in 8 to 12 class hours over about 2 days. In first–degree training, students learn to perform Reiki on themselves and on others. In second–degree training, students learn to perform Reiki on others from a distance. Some students seek master–level (third–degree) training. A Reiki Master can teach and initiate students. Becoming a Master can take years.

Reiki practitioners' training and expertise vary. Increasingly, many people who seek training are licensed health care professionals. However, no licensing or professional standards exist for the practice of Reiki.

If You Are Thinking About Using Reiki

- Do not use Reiki as a replacement for proven conventional care or to postpone seeing a doctor about a medical problem.
- Find out about the Reiki practitioner's background, including training and experience treating clients.
- Be aware that Reiki has not been well studied scientifically, but research on whether and how Reiki may work is under way.
- Tell your health care providers about any complementary and alternative practices you use. Give them a full picture of what you do to manage your health. This will help ensure coordinated and safe care. For tips about talking with your health care providers about CAM, see NCCAMs Time To Talk campaign.

NCCAM-Funded Research

Some recent NCCAM–supported studies have been investigating:

-How Reiki might work
-Whether Reiki is effective and safe for treating the symptoms of fibromyalgia
-Reiki's possible impact on the well–being and quality of life in people with advanced AIDS
-The possible effects of Reiki on disease progression and/or anxiety in people with prostate cancer
Whether Reiki can help reduce nerve pain and cardiovascular risk in people with type 2 diabetes.

Selected References

Barnes PM, Bloom B, Nahin R. Complementary and alternative medicine use among adults and children: United States, 2007. CDC National Health Statistics Report #12. 2008.
DiNucci EM. Energy healing: a complementary treatment for orthopedic and other conditions. Orthopedic Nursing. 2005;24(4):259–269.
Engebretson J, Wardell DW. Experience of a Reiki session. Alternative Therapies in Health and Medicine. 2002;8(2):48–53.
LaTorre MA. The use of Reiki in psychotherapy. Perspectives in Psychiatric Care. 2005;41(4):184–187.
Miles P. Reiki for mind, body, and spirit support of cancer patients. Advances in Mind-Body Medicine. 2007;22(2):20–26.
Miles P, True G. Reiki—review of a bio field therapy history, theory, practice, and research. Alternative Therapies in Health and Medicine. 2003;9(2):62–72.
Nield-Anderson L, Ameling A. Reiki: a complementary therapy for nursing practice. Journal of Psychosocial Nursing and Mental Health Services. 2001;39(4):42–49.
Reiki. Natural Standard Database Web site. Accessed on February 25, 2008.


NCCAM thanks the following people for their technical expertise and review of the content update of this publication: Pamela Miles, Integrative Health Care Consultant and Reiki Master, Institute for the Advancement of Complementary Therapies; Gary L. Yount, Ph.D., California Pacific Medical Center Research Institute; and Barbara E. Moquin, Ph.D., and Partap Khalsa, D.C., Ph.D., NCCAM.

National Institutes of Health

U.S. Department of Health and Human Services

NCCAM Publication No. D315
Created April 2006
Updated July 2009