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Testosterone levels can predict and treat diseases. But how do you determine your ‘right level’?

Establishing a universal "normal" range for testosterone depends on factors such as age, location and wealth ...
5-10-2019 intersex runners

Viewpoint: What defines a female athlete? Law professor, former runner’s case for why Caster Semenya’s testosterone levels critical in determining if she should compete with women

The Court of Arbitration for Sport ruled that intersex athletes must reduce their testosterone to within accepted female levels ...