The body's hormone production changes in middle age. Women produce less estrogen; in men testosterone levels go down. That can have unpleasant effects. Dr. Joachim Spranger talks about how doctors can help.
Caster Semenya is challenging proposed rules to force some female sprinters to reduce testosterone levels. She says the International Association of Athletics Federations is trying to "police the sex of female athletes."
Olympic 880-meter champion Caster Semenya is awaiting the verdict after the South African sued the IAAF over its controversial new regulation on testosterone levels for female athletes. DW answers the key questions.
The former tennis champion has divided the sporting world by saying that allowing trans women to compete with cis women opens the door to cheating. The Athlete Ally sports group removed her from its board in response.
Olympic champion Caster Semenya and others with hyperandrogenism could be forced in to hormone therapy if they want to compete in future Games. A study found that females with high testosterone levels have an advantage.
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