testosterone

New Challenge at the Women’s Africa Cup of Nations: Testosterone Tests

Does the Immune System Know Why Risk of Autism and Alzheimer’s Differs by Sex?

Biological Science Rejects the Sex Binary, and That’s Good for Humankind

Queer Athletes Struggle To Make Space for Themselves in a Straight Playing Field

Most Male Mammals Have Little To Do With Their Kids. Why Are Humans Different?

Sex Isn’t Binary, and We Should Stop Acting Like It Is

In the Ruling Against Caster Semenya, Bogus Science Is Being Used to Stifle the Vulnerable