The Feminist Hub

Being a feminist, I often use the disappointing statistics about women in traditionally male dominated careers as evidence that women still have a while to go before becoming 'equal' in the workforce, especially in careers that rely heavily on intellect and intelligence and 'using our brains,' like the scientific fields for example.
So I find it difficult when I have to combat the fact that, men and women's brains are anatomically different, and it's been scientifically proven that men's brains perform better than women's when faced analytical and mathematical type issues— and when people argue that THIS is the real reason why there are less women in particular fields, I'm not entirely sure how to reply. Any thoughts?