are near death experiences real?

as you may know near death experiences differ depending on your religion-christians -bright light ,hindus -float down  a river ,muslims see  a door .but some scientists based in belgium believe this experience is just our nervous system rection in your brain .my personal experience may not classify as a near death but whilst i was in a coma due to a blood sugar count of 124 i heard a woman's voice in the darkness telling me to wake up and this voice was not my  wife,s or anyone else i knew and suddenly i got a very very overwhelming feeling to wake up and up to my loyal reader what you believe .