We don't know exactly why men are taller than women on average, but we have some genetic clues. On average, human males tend ...

A top European court will decide Thursday whether double Olympic champion Caster Semenya can be required to lower her ...

A top European court ruled Thursday that the Swiss judiciary did not give double Olympic champion Caster Semenya a fair trial ...

People with an XY chromosome combination have more physical strength (especially upper body strength) than people with an XX chromosome combination. Title IX was designed to allow people with an ...

Imane Khelif, 26, was found to have XY chromosomes, according to the leaked results of a 2023 test carried out by an accredited Indian doctor.

Based on 1200 individuals with atypical numbers of sex chromosomes, the presence of an additional Y chromosome “tended to have a larger effect” than an additional X chromosome. In the typical case, 46 ...

European judges ruled that Caster Semenya was denied a fair trial over the testosterone rules that ended her Olympic career.

A top European court ruled Thursday that the Swiss judiciary did not give double Olympic champion Caster Semenya a fair trial ...