The day I died.

Various people recount their near-death experiences; scientists attempt to analyse what these kind of experiences are really about and, in particular, at which point during the dying process they occur. The opinions of the experts differ as near-death experience can be accounted for by neurological responses to oxygen starvation, endorphine rushes etc. But if the experience occurs in the brain, how can it happen when the brain itself has died? Pam Reynolds had an enormous brain aneurysm which she was not expected to survive. Neurosurgeon Robert Spetzler agreed to operate and during the surgery Pam had one of the most detailed near-death experiences while known to be clinically dead - she recounts her experience in full. Professor Stuart Hameroff has been collaborating with Roger Penrose to formulate a theory of consciousness / the mind which can account for near-death experiences. The last word in the programme comes from those whose lives have changed profoundly since their near-death experience.