According to Jung, vampirism is a symbolic expression of our primal instincts. Some even believe that this doctor influenced Bram Stoker, hence the sexuality and bloodlust in Dracula. The German doctor Richard von Krafft-Ebing, who inspired Freud, also believed that bloodthirsty acts were sexual. Your sexual desires are what cause your behavior. Essentially, Freud’s theory is focused mostly on the erotic side of things. According to Freudians, the vampire myth is linked to incestuous feelings of guilt and to infantile oral fixations. In Freud’s world, vampires are surrounded in images of repressed sexual longings and fears. Blood drinking is something psychologists have studied in great depth and below are two of the major theories behind the condition – the Freudian theory and the Jungian theory.

I can however give you a brief summary of the theories doctors in the field have already devised. I’m not a psychologist, therefore I cannot give you a vast and detailed psychological explanation behind real vampirism.

Therefore, logic says, that the issue of blood drinking is in their heads. There is no science that confirms what these real vampires claim. Research has shown that their bodies, in truth, do not physically require the consummation of blood. There is an entire vampire subculture which involves those who drink blood and those who donate blood to these self-proclaimed “vampires.” These vampires claim that they have no control of their cravings, that their bodies need the blood they drink.

There are people who call themselves vampires they are real people who drink real blood.

Vampires Today by Joseph Laycock