Try the suggestions above.
Admittedly, warming your hands by putting it into a bowl full of warm water is a good way to solve that. I've tried it myself, it works. It's relieving too, for me at least.
It is because it's in his gene to shit talk people and stuck in the illusion of feeling superior over the people he so-called peasants, when in reality, he was shit talking the wind. He can't see it, nor can he know it because like I said, illusion.
Brother genjutsu'd himself.