[quote=@Whimsley]
Thanks Haley!

Well, I know this is far from realistic with vampires and what not, but the location of your heart being where it is relates to pressure of blood flow being able to counter earth's gravity at our relative elevation. Wait, do Vampires even have blood flow? Why does it kill them to stab them in the heart then?
[/quote]

A stake to the heart does not kill but instead paralyzes the vampire stabbed. I always imagined that it is so because heart is the seat of the vampire's power and the main container of his undead blood where it gathers and effervesces. There's no scientific reason to it but instead a mystical one, it's like why werewolves are burned by silver and draugirs can be stopped from rising by putting a pair of open shears on their chests.