for those of you whom did get Master Doctors/Healers did you have to sit there constantly and put them on plants. I have a good established little village and they just won't study plants and people don't get sick enough. I finally resorted to a cheat engine and deleted all but 80 of my food and placed everyone on building and research. then yes the two healers did go study plants. I left them 6 hours and neither moved up even a tiny scratch. Very frustrating as I'd like to build my healers into esteemed elders as neither like building (one dislikes work and the other dislikes rocks). LOL I could try for parenting but then my village will go too fast if that is their only job