> What is the reason that we can thank for prion diseases not being much more common? We kinda take this for granted, but it may be the case that our deeply-ro

> What is the reason that we can thank for prion diseases not being much more common? We kinda take this for granted, but it may be the case that our deeply-rooted psychological disgust and aversion to eating human flesh is a product of prion disease killing populations of ancestors who did. Or perhaps, even our tendencies to ceremonies of death helped us: those that feared the bodies of the dead, or were more likely to create rituals of destruction and avoidance, were more likely to persist and pass on their genes :)