One of the well-documented effects of near-death experiences is an increase in psychic and mediumistic experiences (see the pdf article by Cherie Sutherland Ph.D.). Researcher Neil Helm has speculated that Edgar Cayce, perhaps the best-known psychic of the 20th century, may have had an NDE. It seems that Edgar Cayce drowned at around the age of five and was pronounced dead by a physician. Helm suspects that he experienced being out-of-body and on the Other Side before reviving. Read more.