Gender inequality is the social phenomenon in which men and women are not treated equally. The treatment may arise from distinctions regarding biology, psychology, or cultural norms prevalent in the society. Some of these distinctions are empirically grounded, while others appear to be social constructs. Studies show the different experiences of genders across many domains including education, life expectancy, personality, interests, family life, careers, and political affiliation. Gender inequality is experienced differently across different cultures and also affects non-binary people.