Since every part of the Walking Dead series from comics to the video games have revealed the whole you die whether bitten or not thing, I was wondering about something. What happens to a really old survivor? I mean like if they are like 100 years old and dying of old age but in a safe enviroment like the Vatos? I mean, is there even really natural death anymore or is everyone now either getting bitten or killed?

I don't think anyone has really brought it up and to me it just nags at the back of my head. If a really old survivor died of old age would he reanimate or just die?