Bill Sullivan, Indiana University School of Medicine
A new study of nearly 500,000 individuals finds that many genes affect same-sex behavior, including newly identified candidates that may regulate smell and sex hormones.
Athlete Caster Semenya will need to take hormone-lowering agents, or have surgery, if she wishes to continue her career in her chosen events. But the decision to ban her is flawed on many grounds.
The great South African runner Caster Semenya may have competed in her last 800-metre race. She has been demonized for more than a decade, like many other female athletes before her.
Sport is a special domain, but it is not immune from the law and human rights. We’re yet to see if the United Nations Human Rights Council will take steps following a new ruling on testosterone.
Until now, Australia was the only country that required youth with gender dysphoria to seek approval from the Family Court for the second stage of hormone treatments.
Athletic ability is often linked to size – of muscles and bones. New studies are suggesting, however, that the relative size of two fingers could be more predictive of ability.
Darby Saxbe, USC Dornsife College of Letters, Arts and Sciences
Having a newborn can be rough, whether you’re a mom or a dad. New research ties men’s testosterone to their postpartum depression – with some surprising upsides for their partners.
Women are paid 20 percent less than men in the US but live about five years longer than men. You might be surprised at the reasons that men, on average, die at a younger age.
Visiting Professor in Biomedical Ethics, Murdoch Children's Research Institute; Distinguished Visiting Professor in Law, University of Melbourne; Uehiro Chair in Practical Ethics, University of Oxford