<span>in medieval times, abnormal behaviors were viewed as a sign that a person was: possessed by demons
The people in medieval times haven't understood the concept of psychological disorders, so they perceive everyone who got it as being conquered/possessed by demons</span>
Geographic isolation could be caused by a number of environmental factors. If a population of people or species live on an island, amongst mountains, in difficult to navigate terrain, or deep into rainforest or forests generally these groups could experience geographic isolation. Geographic largely occurs if a population or group of people or animals live in a remote region of the world that has little access to others due to any number of geographic features.
Yes indeed, Im sure they are
Intoxicated
I am more than positive this is your answer.
Effective communication is important because it helps to prevent and deal with conflicts. If one person wants something, and if they don't communicate it to the others, it might lead to a situation in which the others refuse then this without knowing, which would lead to conflicts.
So, in short: communication serves to prevent and lessen conflicts.