Psychology
Moral Boundaries and the Social Construction of Taboo
Quick fact
In many societies, eating pork is taboo, yet in Western countries it is a common food; conversely, Westerners may find eating insects revolting, while they are delicacies elsewhere. This shows that taboos are not biologically fixed but are learned social rules.
Why this is interesting
You probably have a list of things you would never do—but your neighbor might see nothing wrong with them. What makes these acts feel untouchable and unmentionable?