gbnz wrote:
I doubt that there are any benefits from meeting the challenge of cold weather in itself,
This is the point I am trying to winkle out. AIUI there are indeed benefits to being exposed to cold and hot. Obviously a very fit (indoors) person will adapt better and need it less, but we do need to be out there in the cold and heat - that is part of the body's ability to adapt and be healthy, not just in a cardio-vascular way (or perhaps, yes part of that).