While self-proclaimed vampires exist throughout the world, science does not support the existence of vampires. Even those with vampire-like traits fail to prove that they are legitimate vampires. Some argue that vampires are only creatures of folklore, while others suggest that they have been a subculture of society for centuries.
There are a few logical explanations as to why some individuals display vampire-like symptoms. For example, long teeth or fangs can result from poor dental health. Cravings for blood typically develop from iron-deficient diets. Some vampire-like characteristics, such as the fondness of capes and coffins, do not occur in the general population and can be dismissed as odd fetishes.