I have been wondering this for a while...what exactly happens during death? I need a better answer than your vitals stop, because just because they stop working for a moment doesn't mean they are BOOM DEAD and instantly start decomposing. If that were true, we couldn't have organ implants. Let's take an example: A heart-attack. What is happening here? I mean, obviously blood flow to the brain and othe parts of the body ceases, but how does this "kill" you? Why can't we bring people back to life, if we are basically electro-chemical machines?