Do vampires physically need blood or is more of psychological need? Its just been eating away at me why vampires need blood . What's with all the vampire recently? It's both physical and phychological. But mostly physical. They can't produce it themselves, so they eventually run out and become mindless beasts. they don't die from blood loss because they are immortal. However, White Wolf's vampires can't use their vampire powers without blood, while Oblivion's vampires lose their powers when they drink blood.
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