The Latest Breaking News from Testosterone

The chair of British Rowing has urged World Rowing to change its transgender policy ‘out of concern that there is a threat to hard-fought-for progress in women’s sport’

KANSAS CITY, Mo. — In April, Kenny Caldwell walked into a Costco pharmacy in Kansas City to pick up their monthly medication. They walked out empty-handed.

When I talk about our research team’s work on pregnancy in transgender people, people often recall Thomas Beatie, a pregnant man who appeared on “Oprah” and in People magazine in 2008. The media focus on Beatie and his pregnancy provoked public fascination that tended to overshadow the everyday lived realities…

Some symptoms related to sleep could be a cause for concern

At 19, Zee Schorsch should be just starting on their journey as a footballer, but current AFL policies mean they have to choose between identity and passion.

Men diagnosed with COVID-19 and having low testosterone levels are more likely to be hospitalised with the viral disease than those with normal levels of the hormone, according to a study.

Keep your body happy with a healthy supplement regime

Unlike their wild counterparts, domesticated cats evolved to live in groups, despite their seemingly solitary nature. New research may help explain why.

World Athletics will review its policies on transgender women and DSD athletes and president Sebastian Coe has hinted the sport will follow swimming in tightening its regulations

Caster Semenya’s first appearance in the world championships since 2017 saw her knocked out without fuss or fanfare after finishing 45 seconds off qualifying for Saturday’s 5,000m final

Caster Semenya switches to 5,000m because of hormone-treatment rules imposed upon her that she calls "an affront to the spirit of the sport".