I think it was actually to avoid NSAIDS like Aleve. My ears perked up because I take that sometimes.
Maybe there's a paper in here having to do with how to manipulate language and perception
https://www.rand.org/pubs/online.html
It is an enormous volume but categories of children/family/communities
education/literacy
int'l affairs
workers/workplace
might be fruitful to search.
Haven't looked at RAND Europe or Tavistock yet… unfortunately, heading back out, break time is over for me