[en] In 1982, Luckey of the University of Missouri published a paper in the journal Health Physics describing radiation hormesis with many references. His assertion was that there is a beneficial effect of low-dose radiation on the human body, contributing to a healthy body, longer life, and vitalization. The radiation hormesis research by the Central Research Institute of Electric Power Industry was initiated on the rationale that if Luckey's claim were to be true, radiation management in Japan is extremely erroneous and that we have to find the truth. Results on patients who received whole-body low dose radiation treatments are discussed