Vampirism refers to the practice or belief in the consumption of blood, often associated with mythical creatures known as vampires. These beings are typically depicted in folklore and popular culture as immortal entities that sustain themselves by feeding on the life force of others, usually through blood. In a psychological context, vampirism can also describe a condition called Renfield's syndrome, where individuals have a compulsion to drink blood. This phenomenon can be linked to various mental health issues and is not widely recognized in clinical settings. Both interpretations highlight the fascination and fear surrounding the concept of blood consumption.