Don't be ashamed: there are definitely some of you out there who have wondered, "What is menopause?" Menopause is a hormonal change that women go through when they are in their late forties or early fifties. During menopause, a woman will stop ovulating and stop having periods, making her no longer able to bear children. A woman is considered to be menopausal when she goes 12 months without having a period.But maybe you already knew all that. The rest of this list consists of menopause facts that you probably didn't know. This list explains what happens during menopause, so if you haven't gone through it yet, read this to find out all you have to look forward to. You'll also find some interesting scientific tidbits about menopause and why it happens. Vote up the most surprising facts about menopause.