THL is right on here. I knew women in the Air Force that thought they were tough. The smartest and toughest women knew better. They knew they couldn't compete physically. It's funny how the women that thought they were as tough as men weren't even as tough as some of the women.
Women and men are different -- period. Men, generally speaking, are stronger, faster, and just plain tougher. There are, of course, exceptions, but they are exceptions, not rule. reid, I'm sure you've got one tough little girl, but don't overestimate her strength compared to men.