The parents of your mother are your grandparents.
Talk with your grandparents or elderly people and find out what they ate and what work they did when they were of your age. Now think about yourself – your daily activities and daily diet. Are these similar or different from what your grandparents did and ate?
Talk to your parents and elders, grandparents and their contemporaries and discuss whether modern society is really more competitive or conflict ridden than it used to be before. And if you think it is, how would you explain this sociologically?