Once you’re below -6C or so you just need more insulation. -6C to 10C in many ways can be harder to manage due to humidity, especially in wet conditions. My prolonged exposure experience is only down to -30C. I did not have enough insulation, but an extra base layer, better gloves/boots would have been sufficient. I was fine with fairly light clothing down to -18C. I hear -50C is where it starts to get really harsh again.
Your body also adjusts a lot. In the Summer in wearing a puffy indoors at 10C(50F) but in the winter I’ll go out in a t-shirt at -10C, especially if doing manual labor.
That’s crazy. My body doesn’t adjust to cold weather. I’m always cold when it’s cold outside, and I’m talking about cold which is considerably warmer than the cold you’re talking about.
Yeah like i said, -6 to about 10C is bad cold due to humidity. But after a few weeks of daily outside temps below zero i adjust. Colorado was even crazier when I was there. Needed thick socks and snowboots but otherwise the sun was still so warming I’d break a sweat walking with a jacket on.