I know there are more than a few Canadians on board here, and even though most of them live south of me, believe it our not. But I thought they might have some experience with cold weather exercise.
They warn you before you leave the hospital about cold air, but when you live where I live, that means exercising exclusively indoors (boring beyond belief.) The temps rarely get above freezing (32 F, 0 C) from November through March. I've always loved the cold and walked and snowshoed all winter for years in the woods with my dog pack.
My limit (for the dogs) is -15 F (about -26 C). I've never had a problem with cross-country skiing or snowshoeing, both of which are very strenuous, in even colder temps, but I've never been recovering from bypass surgery before! I've never covered my nose or mouth even when i froze my earlobes solid. I really can't stand having my face covered and the condensation and ice buildup during exercise in those temps is almost intolerable.
Anyway, I'm 6 weeks out from surgery and already been in the woods walking in the snow. It's not deep enough for snowshoeing. The thing is, it has been incredibly mild - upper 20's even, so that feels balmy this time of year. I'm sure the extreme cold is not going to stay away for long, though.
If anyone has any thoughts or advice about this, I would love to hear them.