It's probably the Whiskey that preserves it. All that information is pickled somehow. He's sure if he stopped drinking he might lose everything. It's not a theory based in anything scientific just guessing. It's something he's good at.
Nate's behind his friend. There's a cursory glance around for anything dangerous. The infected have become less and less in recent days and he isn't sure if that's a good sign or a bad one. "Diapers..." it's definitely something to consider and something he never thought he would consider! It makes Nate smile. "I'll be an uncle soon." it's something he is really looking forward to. Something he hasn't gotten to be yet.
"Is Teagan cheb feedin' the bairns?" It's something to consider and he has instructions for either. It's the type of thing that seems silly for the father and uncle to discuss but they're the ones out here. They'll have to get what they can.
Nate draws his own weapon and waits for Bishop to open up so he can go inside and check corners.