So, things were hot out there over the last few days again. Sports stadiums often have less shade that one might want when there's a heat advisory afoot. Some people drank or ate cool things. And many many people had fans.
Now you, like I have, may have heard the rumor that fanning yourself actually expends enough effort that you end up making yourself hotter. As far as I can find, this may not be true, or may be dependent on a large enough set of factors that it's hard to predict.
But if a bunch of people sitting all together are all fanning, well then it helps. Somewhat like a massage chain. If many folks are fanning, then the collective breeze cools down many people, and so the efforts of the group benefit the group.
Sure, choosing to fan myself is a thing I do for me. But if the people on either side of me are also fanning, I'm going to be cooler than what I could do alone. We all will.
And keeping cool is important in these toasty times.