"Sex" refers to biological differences between females and males, including chromosomes, sex organs, and endogenous hormonal profiles. "Gender" refers to socially constructed and enacted roles and behaviors which occur in a historical and cultural context and vary across societies and over time. All individuals act in many ways that fulfill the gender expectations of their society. With continuous interaction between sex and gender, health is determined by both biology and the expression of gender. - Office of Research on Women's Health
Start here to review the following selected resources to learn more about sex and gender differences research and why it matters. Researchers will want to consider sex and gender differences as they learn, teach, practice and conduct research.