So, my understanding is that humans (gender-non-specific context used) operate best at about 21 degrees (and I'm going to adopt my US cousins' approach and blit

So, my understanding is that humans (gender-non-specific context used) operate best at about 21 degrees (and I'm going to adopt my US cousins' approach and blithely assume that everyone uses the same metric for temperature measurement that I do). Pretty much every office I've worked in - spanning UK, New Zealand, and Australia - has been around that figure. While it's possible I can be oblivious, it's otherwise surprising that no one (of either gender) has ever raised this as an issue in those places. Perhaps it's more a US thing than a 'men thing'.