Long sleeves and long underwear/leggings, two pairs of socks, flannel-lined jeans if you have them, sweatpants and jeans on top if not, flannel or similar overshirt, scarf(!), sweater/sweatshirt, winter coat (or 2 additional sweaters/sweatshirts and a raincoat or other large windbreaker), boots, gloves, mittens, and hat.
You won’t die, especially if you move around. I’ve had to take the coat off while shoveling in those temperatures, though my feet and hands were unhappy after a while. Definitely have a cup of hot liquid when you get back inside though.
I don’t see the point, since I would give up based on the perceived temperature way before any damage from the real temperature would occur.
You get used to it. Humans have an amazing ability to adapt.
Long sleeves and long underwear/leggings, two pairs of socks, flannel-lined jeans if you have them, sweatpants and jeans on top if not, flannel or similar overshirt, scarf(!), sweater/sweatshirt, winter coat (or 2 additional sweaters/sweatshirts and a raincoat or other large windbreaker), boots, gloves, mittens, and hat.
You won’t die, especially if you move around. I’ve had to take the coat off while shoveling in those temperatures, though my feet and hands were unhappy after a while. Definitely have a cup of hot liquid when you get back inside though.