We don't have a finite life span.

[To a species that is functionally immortal, one that only makes it to eighty or ninety was a terrible tragedy.]

... Perhaps that is one of the reasons she wished to preserve your kind. With such a fragile form and such short existences, how could humans prosper without being watched carefully?

[But that aside, before she works herself to tears again...]

But ... these 'vampires'..