Gender inequality is the social phenomenon in which people are not treated equally on the basis of gender. This inequality can be caused by gender discrimination or sexism. 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. While current policies around the world cause inequality among individuals, it is women who are most affected. Gender inequality weakens women in many areas such as health, education, and business life. 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.