Articles on Testosterone

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Teams from Poland, Kenya, Netherlands and Belgium compete in a mixed 4 X 400 metres relay heat at the World Athletics Championships in Tokyo on Sept. 13, 2025. (AP Photo/Petr David Josek) 

We’re asking the wrong questions about women’s athletic performance

Women’s sport has never been stronger or more visible. But even as the performance gap narrows, it remains. The reason lies less in effort and more in biology.
Many women need testosterone during menopause – but most can’t get it. Andrey_Popov/Shutterstock

Why we need testosterone products designed for women

One hormone, huge impact. No licensed testosterone treatment exists for women in the UK. That’s a public health failure, not a niche concern.
romain-jorge/Shutterstock

Some young trans people take sex hormones so their bodies better align with their gender. What are the benefits and risks?

For some trans and gender diverse adolescents, physical changes in puberty can be distressing and lead to a sense of disconnection from their true sense of self.
Neuroscientists are investigating how and when hormones affect the risk for relapse to prescription opioids. ArtistGNDphotography/E+ Collection via Getty Images

New research suggests estrogen and progesterone could play role in opioid addiction and relapse

Why are some individuals at greater risk for developing opioid dependence and addiction? Two neuroscientists at Rowan University discuss their latest findings.

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