Carol Costello : When girls reach age of 6 , why do brains take a back seat to beauty ? I think the answer is that it's not just about physical appearance. ` Big Bang Theory '' and Kim Kardashian send messages to girls about success . Studies show across 65 countries girls outperformed boys in STEM fields . Costello : Maybe it 's our culture that 's making girls turn away from math and science .
Carol Costello : When girls reach age of 6 , why do brains take a back seat to beauty ? Costello : `` Big Bang Theory '' and Kim Kardashian send messages to girls about success . Studies show across 65 countries girls outperformed boys in STEM fields . Costello : Maybe it 's our culture that 's making girls turn away from math and science .