Talk:Kaiko/@comment-24572710-20180510103619/@comment-10733658-20180513201431

^ It was a recent event. He was transformed by the Toxins from Dragon, though we don't have a lot of information about his condition prior to that. He states he was a half-human, so we can assume that their lifespans are shortened but he was doing better than Arima.

I suppose he's simply a longer-lived individual, in the same way that some people only make it to their 60s and some can live past 100.