yanno Kegger, I think you are right. That particular day I was getting killed at work, had no cash in my pocket and had taken some leftovers from home for lunch that just did not interest me. The heat probably kept hunger at bay.
I worked in the golf business for a lot of years, pretty much worked outside. I never had a problem with the heat really. I drank only diet cokes but golf course feed the help for the most part. So I always had something for lunch that was palatable. I think your food comment is spot on.
Was hot as an Easy Bake oven in there today even though it was not so bad outside. I pounded water and sweated like a pig, but I did make myself stop at about 11 and eat a little something (some of a chicken breast), and then I stopped at about 1:30 and ate a little more. I also went to the store and got a couple Powerades. But I never felt bad like I had that other day. So I do think food is part of it all.