Dave,
That might be true for younger guys but I booked the day off today to go ice fishing. I woke up and saw it was -20° Celsius so I decided to wait for it to warm up a bit before going out ice fishing. It isn't too bad with some friends, but I wasn't sitting out there in a light East wind by myself to try to catch a few Perch today. 10 years ago I would still be out there wondering why I can't feel my finger tips... those same finger tips that loose feeling quite quickly now when it gets slightly cold!!!