[What isn't said outright, can be inferred. He cannot imagine how the years wore on man. It's something he had long suspected - but found difficult to prove - that there is a difference in psychology between humans and vampires beyond hunting habits.

His fingertips lifted up, an idle habit of a smoker, despite not having a cigarette on him.]

You, though the others were in both bad states mentally and physically, you were almost on the verge of death.

[Sherlock exhales, studying the face - one he hadn't truly seen in such a long time]