When doctors returned to check on the patient who had almost died and been in a deep coma before being resuscitated, he thanked them for all the work they had done. He had, he told the surprised team of medics, been very impressed and had watched everything they had done. He had heard all that had been said, too, and, at one point, had been concerned when resuscitation was about to be abandoned. He then went on to describe in detail the room where he had been treated - although he had never been conscious in there. That near-death experience is one of a number recorded by Dutch doctors and one of thousands of similar cases that have now been documented in a major worldwide study. New research shows that many critically ill kidney dialysis patients have similar experiences, and that almost one in 10 heart-arrest survivors also report near-death experiences whose features include out of body sensations, bright lights, dark tunnels, and images of life events and spiritual entities. Near-death experiences are surprisingly common. In the latest study, researchers quizzed 710 kidney dialysis patients and found that, out of 70 patients who had suffered a life-threatening event, 45 had gone though a near-death experience. Near-death experiences occur in both sexes, in every culture, and at all ages.