There are many social aspects to the "male" and "female" experience in society, it helps to separate those out from congenital physiology. For example, living a

There are many social aspects to the "male" and "female" experience in society, it helps to separate those out from congenital physiology. For example, living as a woman often entails responsibilities of caregiving, housekeeping, and/or "social reproduction." Certain "emotional labors" are also relegated to women's roles, such as calendaring and keeping in touch, but none of these are safely assumed to have derived from congenital sex. Expectations of eg emotional stoicism in men preclude eg certain platonic intimacies that are common among women. Gendered relationship norms significantly influence our mental and physical health. It would be unscientific to presume they were physiologically congenital. For that reason, it makes sense to refer to study participants by their "sex assigned at birth," rather than presuming any overlap between socialized gender and congenital sex. Remember, in scientific inquiry, precision is key.