Reiki is a safe, gentle, non-invasive form of hands-on healing. It is a Japanese technique for stress reduction and relaxation that also promotes healing. Reiki is based on an Eastern belief in an energy that supports the body’s innate or natural healing abilities.
Reiki - General Inforamtion - From the National Institute for Complementary and Integrative Health
James Deacon's Reiki Page - a sample bibliography of medical research on Reiki