Becoming a vampire involves undergoing the bite of a vampire and being reborn as the undead. The vampire’s roots lie in classic literature, with its first introduction in poetry in the 1700s and in “The Vampyre” by Polidori in 1819. Once bitten, the victim becomes a vampire and lives eternally.
Vampires feed off blood of their victims, some of which they choose to turn into other vampires and others that they simply kill. In modern times, some members of gothic subcultures undergo bloodletting rituals or even get dental implants to make themselves look like vampires. However, because consuming iron-rich human blood can cause iron overdose, the practice of consuming human blood can be detrimental to health.