From advertising to the workplace, it is often assumed that men and women are fundamentally different—from Mars and Venus, respectively. Of course, we all know people who are more androgynous, having a mix of personality traits that are stereotypically considered to be male or female. Importantly, such “psychological androgyny” has long been associated with traits such as better cognitive flexibility (the mental ability to shift between different tasks or thoughts), social competence and mental health.