Why are men and women's body temperatures usually so different?

Almost all the women I've been around are alot colder than I am.

its probably a blood flow thing, i have no idea. i know i'm usually cold when some guys are hot, my hands are usually the coldest.

The male's heart is larger then the female's same with the brain. women are actualy warmer then men making the room seem colder to a female then it is to the male. there is not that much of a diffrence in body heat less then a degree but the speed that blood flows and how much room it has to cover is what makes the diffrence.

I agree that almost all the women I've been around are alot colder than I am.