how do athletes play in 0° with skin showing?

Question

Watching the Dolphins/Chiefs game and some of those players had bare arms… how do they not get frostbite or lose feeling in limbs?

ETA: 0°F

In: Biology

Answer 1

I remember running marathon distances and starting out in double layers with hat and gloves then by the time I was 10 minutes in I’d have shed everything except my base layer.

Working hard makes you hot.