What happens after death? 7 minutes of consciousness

They say that when we die, the brain is still active... for seven minutes. Yes, even if it sounds like a science fiction movie, recent research in Europe and the US shows that some people, after cardiac arrest, have brain activity while they are clinically dead. Even, some claim to have heard when doctors declared them lifeless. One patient reported that he saw himself in a cave, with light at the end... Other studies go further: detail how, min…