I find the topic of "mental health" interesting because of the whole "majority vote decides something is or isn't a thing". You're always expected to act a certain way based on the majority, and mental health is no exception to that. If you don't, you're broken. Society constantly changes the norm too. I wonder if some day most of society will end up reclusive and/or sad instead of people-seeking and happy all the time and that will be the norm... It's interesting to imagine.