Vampires became increasingly popular in the late 20th and early 21st centuries, particularly because, in modern books, movies and television shows, they've become sexy. That was not the picture of the original vampire, however.
Traditional vampires were humanoids with pale skin, generally seen with the blood of their victimes on their face.
Vampires are immortal, and can be killed only when a wooden stake is plunged into their heart, by exposure to sunlight, or by garlic.
Dracula may have been the first infamous vampire, but the legend preceeded him. Dracula was based on Vlad the Impaler, who got his name from his habit of impaling his victims in long lines of wooden stakes, and was hardly the stuff that romance is made of.
Bram Stoker's 1897 novel, Dracula, has contributed greatly to the modern understanding of vampires, although more recent movies, such as the Twilight series, Lost Boys, and Interview with the Vampire have introduced a more attractive view of vampires. Also interesting, although not as well known, are Let Me In and Let the Right One In, which are a retelling of the same story of a young boy who befriends a young female vampire.
The original vampires weren't sexy, and they weren't loved. They were dangerous sadists, who were often believed to be demons. They weren't pretty, either. If you were to picture a ghoul or a zombie, you'd have an idea of what the original vampires looked like.
While Dracula may have been the introduction to vampires for most people, there is a much longer history of vampirism. An earlier name for vampires was revenants, or people who returned from the dead. There are ancient Greek and Egyptian legends of a large contingent of creatures who inhabit the dark underworld. Although they don't use the word, these creatures are described in much the same way as vampires.
The incubus and the succubus of ancient folklore might be linked to early European vampires.
Early legends that are now cited as vampires or vampiric in nature described the creatures as human and animal hybrids, as being zombie-like, or as demons.
While Bela Lugosi portrays Dracula in the 1931 film as aristocratic and sophisticated, by definition a vampire is a reanimated corpse that rises from the grave to drink the blood and eat the flesh of the living, making use of elongated canine teeth. The vampires from early folklore were portrayed more as hideous corpses, much like the zombies of today's movies.
Your conception of a vampire will depend on what you've read or seen, but a common characteristic of vampires today is that of fangs, which are usually evident only when the vampire is in the midst of bloodlust. However, in folklore and ancient legends, they are pictured as using their tongues for exsanguinations.
The modern attractive and even romantic portrayal of vampires has spawned a cult of people who believe they are vampires. In doing so, they will sometimes wear fangs, file their teeth to emulate fangs, or even undergo dental procedures to have implants replicating fangs.
Most portrayals of vampires are strongly based on vampires as nocturnal creatures, retiring to a dark place, often a coffin or a mausoleum, during the day, which is when they are most vulnerable. Usually, vampires are said to be hypersensitive to sunlight, and they are often shown as spontaneously combusting when exposed to sunlight.
Commonly, vampires are portrayed as possessing unusually strong powers of vision and smell, and are sometimes shown as having the ability to shapeshift into a bat, often flying away through a window.
By most accounts, there is a hierarchy of vampires, with those who were born vampires at the top, followed by those who were turned by another vampire.
Although there are believers, most people today don't believe that vampires truly exist, and this is probably true even for those who like to portray themselves as vampires. Still, the legends long preceded the movies and books of today, and legends generally come from somewhere.
One theory has to do with a disease known as porphyria, which stems from an unpredictable production of heme, which is a chemical in the blood. When people have this disease, it adds toxins to the skin that act like an acid when exposed to sunlight, and they may also have an intolerance for foods like garlic, with a high sulphur content.
Another is tuberculosis. We know now that TB is a lung disease, but people with TB tend to have a pale appearance and are prone to coughing up blood. As TB is highly contagious, people may have assumed that the TB sufferer was a vampire who was turning others into vampires.
Catalepsy may have also played into it. Catalepsy attacks the central nervous system, slowing the sufferers heart and respiratory rate, making them appear temporarily dead.
 
 
Recommended Resources
The AVA was formed for the purpose of promoting unity among the vampires of the greater Atlanta, Georgia community, honoring the traditions of history and advocating for the safety of its members. Its membership policies and organizational structure is set forth, and the results of a sociological and phenomenological study of the vampire community that was released in 2006 is published, along with other educational topics, press information, and an online discussion forum.
http://www.atlantavampirealliance.com/
Intended for real vampires and blood donors, as well as for those who want to learn more about the subject, the site offers introductory material and informational articles but is primarily a web directory of vampires, donors, and "otherkin," and "therian" sites. Searches of listed sites may be sorted by geographical location, topic, or type tag. Listed sites are rated from zero to five stars. A feed directory is available to members only, who may register online.
https://theblackbooks.net/
Dedicated to Count Dracula, the vampire, and his historical inspiration, Vlad III Dracula, Prince of Walachia, who was also known as Vlad the Impaler, the site makes comparisons between fiction and the history of Dracula. Biographical sketches of the fiction character, the historical person, as well as the legends of vampires, as portrayed in literature, movies, and video, are included. Information about Dracula tours, and an online shopping area is included.
http://www.dracula.cc/
Intended for people eighteen years old or older, the site discusses vampirism, blood-letting, blood-drinking, and related topics. Created by a person who claims to have been born a vampire, and whose mother and maternal grandfather was also a vampire, the site covers various vampire types, myths regarding vampires, energy work, and recipes. An online chatroom for vampires is included, along with a manual for using the chatroom, its terms of service, profiles of members, and statistics.
https://real-vampires.com/
The company conducts research into vampirism, energy workers, and self-identified vampires. A general overview, focus, and clarifications on its services and research are put forth, including its purpose, definitions, instructions, and privacy concerns. Details of its sociological and phenomenological study of the real vampire and energy worker community are put forth, along with its projects, findings, and analysis. Schedules and contacts are included.
http://www.suscitatio.com/
Described as a worldwide organization of vampires, with a dedicated priesthood, and the only public institution representing the vampire religion, the site offers a general overview of the Temple, a vampire test video, membership information, subscription and activation, an introductory booklet, and facts about vampires. Other resources include the vampire creed and other writings. An online shopping area includes literature, jewelry, and audio programs.
http://templeofthevampire.com/
Origins, legends, and beliefs about vampires throughout history are discussed, including ways in which perspectives on vampires have changed over the years. Other topics includes the powers exhibited by vampires, ways in which they can be killed, and a list of famous vampires. Profiles and representations of some of more well-known vampires from history and literature are included, and the ways in which vampires have been represented in fiction is featured.
http://www.vampirefacts.net/
Established in 2004, Vampire Rave is a social networking site for vampires and goths. Besides being a meeting place for real vampires, the group has a stated goal to catalog everything possible about vampires. Registered members are encourages to add to the database. The member list uses handles rather than real names, but a list of vampire alliances is included. Its membership levels and benefits are set forth, and an online store, and informational pages are available.
https://www.vampirerave.com/
Purported to be a private and exclusive Society of real vampires and their disciples, the site promises fellowship among vampires, with membership by invitation only. Definitions of vampire blood are provided, and an introduction to the Society is included, along with its activities, and, at this time, a very brief FAQ answering the question of whether the Vampire Society is real. An informational blog discusses truths about vampires, the Society, and membership in the Society.
http://thevampiresociety.yolasite.com/
Discussing vampires as being the next step in human evolution, the site offers information and recommendations for those who believe themselves to be vampires, as well as ways in which one might be able to tell, and suggestions for approaching someone thought to be a vampire. Questions and answers about real vampires are presented, including myths and facts, information about the vampire community, vampire cults, and a list of vampire-friendly bars and clubs.
http://www.vampirewebsite.net/
Offering content for those who have an interest in vampires, those who enjoy playing vampire games, and those who believe themselves to be vampires, the site offers a timeline of documented vampires throughout legend, history, and literature. Popular categories include Buffy the Vampire Slayer, The Vampire Diaries, True Blood, and Twilight, and several articles on anything having to do with vampires may be included here, including a shopping area. The Fang Society is also introduced.
https://www.vampires.com/