We spend a great deal of time on Empowered Health discussing how sex differences affect culture and science, but accounting for gender identity is key to an all-encompassing understanding of health issues. Author and activist Sarah McBride joins us to discuss the complexity of gender identity. McBride is a transgender advocate who works as the press secretary of the Human Rights Campaign. During her senior year at American University, known for its hyper-politicized campus in the heart of D.C., McBride made headlines when she came out as transgender while serving as study body president. Since then, she had a critical role in passing legislature banning gender identity discrimination in Delaware, was the first openly transgender person to address a major party convention, and published a book detailing her experience in the fight for transgender equality.