Most of my villagers are dying before they get to their late 70's. Only one has made it to 79 and one to 80 out 38 deaths - what am i doing wrong? I have the nature faction and have acheived all the puzzles and awards except for getting a villager to live to 90.

Please help as i have left them alone for several days now in the hope that one of them will reach 90 but no joy.

Thank you in advance

Debs