There is a tendency for women to be marginalized in the sciences. Often women have to prove themselves first, while their male peers do not have to fight to have their voices heard. If, by the same token, some women are not self-promoting, how can the succeed in a discipline where they first must prove themselves? This is only magnified if women want to work in a scientific field that isn't well - established. Perhaps this rejection from the sciences causes women to reject the fields as a counter attack. Sadly in this way both the sciences and women suffer.