Found this on Instapundit.
SCIENCE: Hot Girls Don’t Feel The Cold.
https://www.t-nation.com/alpha-life/...-cold-weather/
"...we found that women who are more highly focused on their appearance show no relationship between how little clothing they are wearing and their reported feelings of being cold on a cold night out. These findings suggest that to the extent women self-objectify, they increasingly lose access to their own physical experiences."
What they're saying is simply that women who are highly focused on the way they look become disconnected from their bodies. They're less aware of things like hunger, their heartbeat, and, case in point, whether they're cold or not.