We talk to science journalist and author Angela Saini about her latest book Inferior: How Science Got Women Wrong and the New Research That's Rewriting the Story. In the book, she examines numerous studies on whether sex differences are held up by science. Do boys prefer cars and girls dolls? Are many studies that used male subjects going to have the same results if female subjects were used? Angela aims to overturn many of the science stereotypes - so we took a closer look.