it seems that in your first game you bought the level 3 of medicine faster than in your new game. With level 2 only, villagers become elderly at 58 y/o!
Oh.

Wow. Well, thanks for explaining. That'll teach me, lol. On top of it, my elderly runner is stupid too. She's starving herself to death. She's 63 now, and "weakened" with a status bar near the empty range. I'm now sitting here, force feeding her in order to raise her health back up. I tried getting a doctor to help her, but that didn't help. My elderly runner just "ran" away (since as an elder she can't really run anymore, lol) because apparently she thought I was trying to breed her and the doctor is the same gender, lol.