Aww, thanks! And thanks for your tips. It makes a lot of sense. Heavy thinking really can be a strenuous activity even before factoring in any panic attacks, and approaching it from a standpoint of physical preparedness probably would make a difference.

I'll write up a post about anti-racist mathematics later. It's a fascinating topic that I probably can't do justice to (and I'm the wrong person to talk about the half of it that I still find unpersuasive).