I just recently noticed this too. I have a bit of ADHD and I've found it helps me follow meeting discussions and such. Can't quite explain it because being t

I just recently noticed this too. I have a bit of ADHD and I've found it helps me follow meeting discussions and such. Can't quite explain it because being tired should make focusing harder (and true, I'm probably a slightly less effective coder than normal right after a run, just because of tiredness). But for whatever reason I've noticed it's much easier to follow other people's lines of thought and catch the important details after a good workout. Edit: upon further reflection, I think the big difference is it's a few-hour boost in self confidence. So it's much easier to follow conversations and ask probing questions, rather than being afraid to ask things for fear of looking foolish.