Evolution of accruement of Attention - ADHD (not a disorder)

If you are doing the work of two or even three people over generations and generations..(i.e. women doing mens role, hunting large animals and doing women's role as well) what do you think could happen....your attention will be short because you may find conversation from the social lineage rather boring and not deep enough matching your historical abilities of hunting, looking after children, agriculture, warrior lifestyle etc and just being generally busy to that of two people or more. It is like petty conversation against complex excessively deep thinking. Women for many generations, may have had many children like up to 12 or 15 and that would have affected her concentration spam levels as well as hunting, fishing etc etc. Sometimes in Africa, the number of children born is like competition against other wives. The work was too much. Marriage might have been polygamy in which the women did most of the work as the husband had may be 5 other wives. This will have impact on a women's thinking pattern over many generations; conclusion thinking, which is getting to the point straight away which is a unique thinking pattern which saves time in thought processes as it tags on heavy key thoughts.

What was the economical reason for so many wives, may be it was to have many children to help out on the farm that the husband owned; afterall, they did not have machinery in those days. They did not have the time to sit and listen to perhaps floppy social conversations which had no significance on their lifestyle benefit at the time.They were successful hunters and had plenty of food in abundance at the time.

However, as the ADHD individual gets older, their attention spam improves.