Eli5: if humans run at 37.5 degrees Celsius why do temperatures lower than that feel hotter?

Question

Thinking about this while I sit in 20 degrees heat sweating my ass off. Like shouldn’t anything under 37 degrees feel cold to us?

In: 34

Answer 1

Because you lose less heat in 25 degrees than you do in 15 degrees.

Your body produces heat and it has to go somewhere to stay on temperature. If that somewhere isn’t heat transfer via skin you start to sweat and voila, you lose heat again.