Gender polarization is a concept in sociology by American psychologist Sandra Bem which states that societies tend to define femininity and masculinity as polar opposite genders, such that male-acceptable behaviors and attitudes are not seen as appropriate for women, and vice versa.
 The theory is an extension of the sex and gender distinction in sociology in which sex refers to the biological differences between men and women, while gender refers to the cultural differences between them, such that "gender" describes the "socially constructed roles, behaviours, activities, and attributes that a given society considers appropriate for men and women".
 According to Bem, gender polarization begins when natural sex differences are exaggerated in culture; for example, women have less hair than men, and men have more muscles than women, but these physical differences are exaggerated culturally when women remove hair from their faces and legs and armpits, and when men engage in body building exercises to emphasize their muscle mass.
 She explained that gender polarization goes further, when cultures construct "differences from scratch to make the sexes even more different from one another than they would otherwise be", perhaps by dictating specific hair styles for men and women, which are noticeably distinct, or separate clothing styles for men and women.
 When genders become polarized, according to the theory, there is no overlap, no shared behaviors or attitudes between men and women; rather, they are distinctly opposite.
 She argued that these distinctions become so "all-encompassing" that they "pervade virtually every aspect of human existence", not just hairstyles and clothing but how men and women express emotion and experience sexual desire.
 She argued that male-female differences are "superimposed on so many aspects of the social world that a cultural connection is thereby forged between sex and virtually every other aspect of human experience".
Personal narrative (PN) is a prose narrative relating personal experience usually told in first person; its content is nontraditional.
 "Personal" refers to a story from one's life or experiences.
 "Nontraditional" refers to literature that does not fit the typical criteria of a narrative.
Gender systems are systems of gender roles in societies.
 A "gender role" is "everything that a person says and does to indicate to others or to the self the degree that one is either male, female, or androgynous.
 This includes but is not limited to sexual and erotic arousal and response."
 Gender identity is one's own personal experience with gender role and the persistence of one's individuality as male, female, or androgynous, especially in self-awareness and behavior.
Sexism or gender discrimination is prejudice or discrimination based on a person's sex or gender.
 Sexism can affect either gender, but it is particularly documented as affecting women and girls.
 It has been linked to stereotypes and gender roles, and may include the belief that one sex or gender is intrinsically superior to another.
 Extreme sexism may foster sexual harassment, rape, and other forms of sexual violence.
The distinction between sex and gender differentiates sex (the anatomy of an individual's reproductive system, and secondary sex characteristics) from gender, which can refer to either social roles based on the sex of the person (gender role) or personal identification of one's own gender based on an internal awareness (gender identity).
 In some circumstances, an individual's assigned sex and gender do not align, and the person may be transgender, non-binary, or gender-nonconforming.
 In some cases, an individual may have biological sex characteristics that complicate sex assignment, and the person may be intersex.
In linguistics, the term nominal refers to a category used to group together nouns and adjectives based on shared properties.
 The motivation for nominal grouping is that in many languages nouns and adjectives share a number of morphological and syntactic properties.
 The systems used in such languages to show agreement can be classified broadly as gender systems, noun class systems or case marking, classifier systems, and mixed systems.
 Typically an affix related to the noun appears attached to the other parts of speech within a sentence to create agreement.
 Such morphological agreement usually occurs in parts within the noun phrase, such as determiners and adjectives.
 Languages with overt nominal agreement vary in how and to what extent agreement is required.
"Gender" refers to social or cultural distinctions associated with being male or female.
 Scholars generally regard gender as a social construct—meaning that it does not exist naturally, but is instead a concept that is created by cultural and societal norms. "
Gender binary" is the system of viewing gender as consisting solely of two, opposite categories, termed “male and female”, in which no other possibilities for gender or anatomy are believed to exist.
 This system is oppressive to anyone who defies their sex assigned at birth, but particularly those who are gender-variant or do not fit neatly into one of the two standard categories.
 Gender identity, one’s internal sense of being male, female, neither of these, both, or other genders, is something that everyone has, and not everyone identifies their gender as male or female.
Gender inequality is the idea and situation that women and men are not equal.
 Gender inequality refers to unequal treatment or perceptions of individuals wholly or partly due to their gender.
 It arises from differences in (arguably socially constructed) gender roles. Gender systems are often dichotomous and hierarchical; gender binary systems may reflect the inequalities that manifest in numerous dimensions of daily life.
 Gender inequality stems from distinctions, whether empirically grounded or socially constructed.
Gender identity is one's personal experience of one's own gender.
 Gender identity can correlate with assigned sex at birth, or can differ from it completely.
 All societies have a set of gender categories that can serve as the basis of the formation of a person's social identity in relation to other members of society.
 In most societies, there is a basic division between gender attributes assigned to males and females, a gender binary to which most people adhere and which includes expectations of masculinity and femininity in all aspects of sex and gender: biological sex, gender identity, and gender expression.
 In all societies, some individuals do not identify with some (or all) of the aspects of gender that are assigned to their biological sex; some of those individuals are transgender or genderqueer.
 Some societies have third gender categories.
Gender roles are the social and behavioral norms considered appropriate in social situations for people of different genders.
 An understanding of these roles is evident in children as young as age 4 and are extremely important for their social development.
 Gender roles are influenced by the media, family, environment, and society.
 A child's understanding of gender roles impacts how they socialize with their peers and form relationships.
 Many young children have a firm sense of their gender identity, while some children can experience gender identity confusion.
 In addition to biological maturation, children develop within a set of gender-specific social and behavioral norms embedded in family structure, natural play patterns, close friendships, and the teeming social jungle of school life.
 The gender roles encountered in childhood play a large part in shaping an individual's self-concept and influence the way he or she forms relationships later on in life.

Question: Gender systems can affect what personal experience of one's own gender and how they fit in society?
Answer: Gender identity