My wife has the same problem with you guys. What she wants most before sleeping everyday is to be in my arms. She has pretty cold feet and hands. She wants me to warm her up all the time.
I have a warm hand and feet, I am very glad to do that.
In addition, I am cold in the summer and warm in the winter. My wife told me that I am a special gift to her from God.
Recently I find out that not only Chinese women have 'cold feet and hands', but also European immigrant women. At several occassions when I shook hands with them, I found out that they had cold and day hands. I am pretty sure that I gave them very good impression after I shook hands with them simply because I really gave them a warm and safe feeling.
Especially during winter time, woman needs to have someone else to comfort her. A pair of warm hands really turn her on.