Odd thing happened to me today.
I walked to the store and somewhere in the store I lost my sunglasses which usually keep glare from the sun from overloading me. On the way back I had gotten warm from the exercise, so I took my jacket off (I was wearing a T-shirt and sweat pants). I was thinking mostly about how the glare from the sun was so annoying and how I was going to have to be careful not to walk into traffic; and while I noticed it was a little cold, I didn't take any further note of that until I realized it was snowing.
So here I was in my T-shirt and sweat pants, walking home in the snow and not feeling very cold at all. (About one-and-a-half miles.) I'm not usually bothered that much by cold, but when it's actually snowing, I do have to put on a sweater... except for today. Today I didn't notice how cold it was at all until I started getting hit by some fat snowflakes. It was close to freezing.
You know how when you're in overload, your brain will shut down extraneous functions, kind of the way if you overload a computer, one or more of the programs will freeze? I think that must've happened to me.
I got back home and, out of curiosity, took my temperature. Core body temperature was 101.4 degrees (that's a slight fever, consistent with exercise). I can only assume my brain was thinking, "Whoa! All this crazy data coming in from the eyes--I've got to drop something! Let's ignore the temperature sensors and just ratchet up her body temperature to make sure she doesn't freeze."