blah blah blah, so many opinions, which one is right? - its always the same shit
frankly im not sure whether God exists or not, but as a scientific person i see what i see, and what i see about death is that when your body and your brain stops functioning, you are considered dead - there are a few main things that humans cant live without, as Breath (Oxygen), Blood flow, Energy intake, Water H2O, Cell Activity and Many others..
if you lose one of these, then you will die, and certain illnesses or damage can lead to the deprivation of one of these fundamental needs!!
but most importantly you should know, that life does not reside in the Body or soul as some put it, but in the Brain, the Body helps the brain to Survive, but if you were just a living talking head, you would be considered alive imo!! - unless ur a zombie lol, but im talking about real function of the brain (not magically, or just a bit of activity)