I realized that I never know the moment I fall asleep and scientists have debated about the brain retaining function shortly after death or something to that effect.Well I was thinking that what if thats our mind processing or accepting death.This would be my explanation of the light at the end of the tunnel or life flashing before your eyes. It would be like drifting into a dream.I imagine death by brain damage would be something like being knocked out.Have scientists done any studies or reports with something similar to this? Is there any info someone can give me as to why I would this would be incorrect?