how do cold temperatures hurt biological entities from a physics point of view?

Question

So my understanding is that heat is simply the speed/velocity and kinetic energy of molecules.
I can understand that the hotter something gets, the more excited and higher velocity/kinetic energy molecules have. it is natural for me to sort of grasp how letting your skin molecules come into contact with that, it strips away your skins molecules and you get burned.

but what i dont understand is: Cold is supposed to be the opposite and molecules more or less at rest mean low temperatures.

How can stable/resting molecules hurt us when its not actively stripping away skin molecules etc?

In: Chemistry

Answer 1

your cells are little car engines.
cold engines don’t work as well (without antifreeze).
frozen engines don’t turn on at all.