Have you ever been really cold? Like lots-of-minus-degrees cold? You finally come inside; the fireplace is blazing. You have removed the layers of coats and sweaters, scarves and gloves, and you are standing, hands outstretched, close to that roaring fireplace. At some point your body joyously responds and you feel that first shudder, head to toe, ridding your body of the chill and slowly introducing it to warmth.
