It is the answer to why certain cultures resorted to rituals of human sacrifices, in which the victim was increasingly terrorized, their body was then pierced and slowly bled for lesser priests to feast on. The climactic moment was when the victim was so panicked, the high priest would then quickly remove the heart and feast on its adrenochrome-filled blood to which the effects caused an altered state of mind. The chief priest was consumed with a feeling of being connected with the gods.

History talks about vampires draining our life fluids going back centuries. Blood didn't become the standard until Stroker. The older stories were fluids or life essentials. Myth starts from a kernel of truth no matter how bizarre.

I believe brittany spears recently posted about blood taken.

And all it took was credible science. How soon until the Cabal establishes the narrative that this is junk science?