I have aleays wondered about this without having proper terminology to put my finger on. I grew up in Alaska, and it's pretty chilly most of the year, bitterly cold for a small portion and relatively warm in the summers. I got stuck at maybe the cold slows things and high heat rejuvenates one's self. Rarely get sick. But this, your explanation, is like turning on lights in an attic that's been dark forever. Wow. 🤯