In many cultures, blood is considered to be the equivalent of the sacred life force, explaining its use in many historic religious rituals and ceremonies. In myths and legends, vampires were said to utilise the power of human blood, drinking large quantities from their living victims in order to obtain their life energy. Young virgins were said to be highly prized as prey due to the belief that they held the highest levels of life essence, possibly why it was rumored the North Korean dictator Kim Jong-il injected himself with blood from healthy young virgins to slow the aging process.
But is there any truth in this? Surprisingly, science says "Yes"!