The scientific explanation for the existence of Vampires

Vampires have been seen and documented throughout history. The history of vampires goes further back in time than most people realize. The chaldeans, who lived near the Euphrates river in the southwestern part of Asia more than five hundred years before the time of Christ , feared vampire or creatures similar to vampires enough so that they created charms to protect themselves from being attacked by such creatures. The Assyrians and the Babylonians feared a creature …

…The Vampire Lestat at one point one of the vampires in the book just looks at the other one and simply says 'You're the mad one.' ( Rice, Anne. The Vampire Lestat p73) not realizing that madness plays a large part towards explaining the vampire legend as well as other mental conditions. One of these conditions which could explain the vampire legend is the condition known as a cataleptic condition which many times is brought