I’m looking for the most in-depth, technical answer I can get.
I understand that when calories are “burned” heat is a byproduct (but I don’t really know what burning a calorie actually means). I understand that your heart pumps faster, blood flows more quickly, breathing is heavier, so friction may even play a part in producing some of the heat initially.
But, on the most basic cellular/chemical level, why does exercise make me feel warm? And warm for quite a while afterwards too! Why does my body seem to feel warm for up to an hour or so after even a brief bit of exercise?
(I work on a very cold boat and I go exercise every once in a while to stay warm, it’s very effective, much more than when I bundle up with gloves and such).
The more technical the answer, the better! Thanks