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.
Caster Semenya is legally female, was from birth raised as female and identifies as a female.
Jon Connell on flickr
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.
An arbitration court ruled that the 28-year-old runner must lower her testosterone levels in order to compete.
AP Photo/Petr David Josek
Sports are segregated by sex. But what happens when athletes don’t fit neatly into sport’s definition of gender?
South Africa’s Caster Semenya in the moments before the women’s 800-meter final during the Diamond League athletics event in Doha, Qatar on May 3. The world champion easily won the race, but her future remains in doubt.
(AP Photo/Kamran Jebreili)
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.
Caster Semenya of South Africa is clearly a superb athlete.
Tracey Nearmy / AAP
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.
There’s lots going on in the lives of four-year-old boys, including how to regulate their emotions. Let’s not blame their hormones.
from www.shutterstock.com
Some parents think their four-year-old boy’s emotional outbursts and aggressive behaviour can be blamed on their hormones. Here’s why that’s a myth.
While this football player’s arms may look like they give him an onfield advantage, his fingers may actually be more predictive of his athletic ability.
Ostill/Shutterstock.com
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.
Who’s missing from this picture?
Lawrence Sinclair
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