Discrimination or prejudice against people based on their sex, gender, and/or perceived characteristics thereof.  It is linked to beliefs around the fundamental nature of women and men and the roles they should play in society. Sexist assumptions about women and men, which manifest themselves as gender stereotypes, can rank one gender as superior to another. Such hierarchical thinking can be conscious and hostile, or it can be unconscious, manifesting itself as unconscious bias. Sexism can touch everyone, but women are particularly affected.