A true testament to the effectiveness of drinking children's blood perhaps. Or at least having the blood of millions of 'useless eaters' on your hands.
In Russia, in permafrost conditions, for these purposes, old people usually prefer to take baths from the menstrual blood of virgins. And those who are younger just drink vodka with Nutella, and then go to the gypsies to dance with bears to the accompaniment of a balalaika around a trophy street lamp. 