It’s not just a fat or muscle thing. Those both contribute of course; fat insulates and muscle produces more heat. But the real player is the surface area to volume ratio.
A bigger person has a lot more volume than they have a bigger surface area, and since heat is lost through the skin this has a major impact.
I have never understood that. (lemmy.world)
Alaska Airlines grounds 737 Max 9 planes after section blows out mid-air (www.bbc.com)