Depends on the mythos. Usually they eat/sleep/drink/breath but don't technically have to (barring blood). Either way, there's no blood in there for her.
Warning: Extremely Dangerous. Do not brake, open, or excessively shake. Not Stirred. Do Not expose to direct Sunlight or within the proximity of a PAD Chief. Side effects of not adhering to this warning label include but Not limited to; Fate alteration, Spearing, Knifing, Unexplained loss of blood and life.
