But back to the thread...
Myself, I haven't noticed a change, although maybe it's too soon, or maybe I'm coming from a very different baseline than the rest of you -- I've always tended to get cold easily, and even though I'm active I'm still prone to cold hands and feet. In the summers if it gets too hot, I have a tendency to accumulate fluids -- i.e., I swell up -- so I'm quite happy to live in a relatively mild climate. I don't know if it's gotten better as I've become more active...maybe.
I'm told that I seem to radiate an unusual amount of heat when I'm sleeping, although I'm generally the one who complains of being cold.
It might be a surface area to volume thing. I'm little.
or maybe it's a girl thing -- do women notice being too cold or too hot more than men, on average? perhaps the physiology of thermoregulation in human females has some quirks that make a difference. I don't know -- I don't know if there's even a difference. It might just be me.