Near-death experiences often have pervasive and long-lasting aftereffects in the lives of the affected persons. These aftereffects may concern personal attitudes to their own death, beliefs and spiritual life, social relationships, and other important aspects of life such as health care and work. Despite hundreds of collected and analyzed NDE reports, in the publications of many NDE researchers there is no discussion of such aftereffects that take a scientific perspective on NDE phenomena. From a scientific point of view, we can attest stagnation in the field of most NDE research. This stagnation will continue as long as researchers remain in the mental tradition of Moody, misinterpreting or ignoring studies on brain activity in metabolic stress, on brain physiology in the progression to brain death, and on the relationship between levels of consciousness and signatures in electroencephalograms.