In severe frost, you need to go out as if going into battle
In severe frost, one must go out as if to battle: healthy, not hungry, well-rested, and full of energy. Remember that previous frostbite, weakened immunity from recent illnesses, sweaty feet, and chronic cardiovascular diseases are frequent companions of frostbite.
Do not go out into the frost with wet hair after a shower, as falling ill in such a case is the first thing your body will do.
A few words should be said about drinks. Tea is the right choice both before going out and while outdoors. A thermos, as they say, is of great help.
From "warming" drinks in this case, only the name remains. Alcohol only causes a deceptive illusion of warmth. The main bad habit – smoking – should also be forgotten, as it reduces peripheral blood circulation, making extremities more vulnerable.
Clothing should be warm, functional, and loose; its external appearance and trendiness are secondary.