If Barbie were a real woman, she'd be seven feet tall with a 40-inch bust, 22-inch waist and 36-inch hips. And her legs would be about five feet long.
Source: I think I read this in some Susan Faludi book.
Of course we were very poor when I was young so my sister never had a real Barbie™ and had to make do with cheap Barbie knock-offs like "Stacy" and "Barpie" (which was an ethnic rip-off.)
How to pull off a Barbie head in two seconds flat: The secret technique for certain Barbie decapitation is to sqeeze the neck while yanking on the head. The best place to grip Barbie's head is around the jaw and not the hair (newbie mistake). Caveat: I haven't needed to do this for a number of years so I'm not sure this still works on Modern Barbies.