Really, isn't it kind of pushing it that so many live to the 2370s? Yeah, I get it, life spans are longer, but I was always under the impression that McCoy living as long as he did was a rarity. Making it to 150 would be like getting to 100 is today, it happens but is pretty damn rare. But the novels make it seem everyone from TOS is around and active at 120-130. Even "Mr Adventure!"