Not that it matters but if you were 2% body fat “naturally” you’d be dead a long time ago.Your theory is flawed. I spend every cold day of my life tending to the welfare of my livestock. In fact I spent 18 months of my life riding pens in a feedyard while waiting on my wife to finish her degree. I know how to dress warm. For me it isn't so much the cold as it is the layers of clothes. Mind you I am 2 percent body fat naturally. Skinny guys get colder than fat guys. I hate the cold because of the clothes I have to wear. Also oil and grease are nearly un cooperative. In fact mechanicing is a bitch. I often wonder if I should have just managed a tiki bar on a tropical island. I have always hunted, but prefer to just go out target shooting on a pretty day. Since I am fortunate to live in the outdoors all the time, I don't need to go hunting like urban people do. I get it......it's their only escape. But......as I get older, I dislike the cold more and more.
the brain and organs need more than that to function if not they shut down.
the little pinchers aren’t accurate and neither are scales that put a current through you.
for a proper measurement you need to be physically measured, weighed and put in a bath of water.