3) Since how many time do you play with this tribe? At the beginning, your villagers improve very slowly but the most they work, the most it goes fast. Adepts and masters succeed more and more. To restore their health; it takes a long time. Bring them to eat again and again, maybe 15th or 20th time! The farming work is less tiring than other tasks. And necessaryfor their health!
Did you bring them to study the strange plants? Take care to have some healers, especially when you quit the game.