 Mr moody realised that due to modern advances in technology, more people who had been declared clinaclly dead were resuscitated. These were some of the characteristics that many of these experiences included:  A feeling of being out of the body  Absence of physical pain  Movement through walls  Movement down a tunnel with a bright light at the end  Feeling of ecstasy and bliss  Being in the presence of a divine being  A feeling of empathy with people you have known

 Of the many testaments on record, that of Jack Foreman, a US naval technician, combines most of the common elements. Foreman was "cooked" by a radar leak and had major surgery for a large hole in his diaphragm. Several days later, he appeared to die. "I could look down on my whole body," he later reported. "One medic was applying electric paddles to my chest to shock me back and shouting ‘Breathe, you son of a bitch, breathe.'" They stabbed needles into his lungs to extract fluid and injected adrenaline direct into the heart. Foreman says he saw his entire life pass in seconds: being in the womb, the ceremony of his Christening, an embarrassing incident as a small boy when he soiled his pants. He heard a loud rushing noise and appeared to be speeding through a dark tunnel with a light of unbearable brightness at the end. This light took human form and he received a message, though not in words, "You must go back." The tunnel experience happened in reverse. Because of its radioactive status, Foreman's body had been taken to a cleaning room. He had a feeling that he re-entered painfully through his toes and when he spoke, the medics were totally shocked.

 The main challenge to the near death experience which Dr Raymond Moody postulates is that they are NEAR death and that there are other factors which can cause the experiences, this could be due to oxygen starvation or due to drugs and painkillers.  A scientific approach would lead to the conclusion that these experiences are Hallucinations and therfore not real. To an LSD user, the trip may seem completely real and true to them, however it is the brain causing the visions.  Speculation: There is a large myth in society that when someone has a near death experience, they see a light and a tunnel and experience out of body feelings, therfore possibly these visuals are the power of the brain and an expectancy of what to see.