This article was reviewed by Darragh O’Carroll, MD. Key Takeaways: Testosterone’s reputation for causing anger and aggression is overstated — the science shows a more complex … ...

Do hormone treatments, like testosterone blockers, take away a trans woman’s physical advantage over a female in athletic competition? “Males have natural and categorical advantages over females in ...

If you’re taking finasteride — or the brand name versions Propecia or Proscar — you’re probably checking your hairline for changes. But there might be something else you’re worried about changing: ...

Historically, testosterone has been associated with masculinity. Someone having high levels of testosterone was shorthand for perceived higher levels of aggression, strength, and libido. However, ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: Cholesterol is a key building block for testosterone. Through ...

Here’s when and why experts think testosterone should be prescribed to middle-aged women, and how it affects their lives. By Susan Dominus Testosterone use has recently exploded among middle-aged ...

DURHAM, N.C. – Cooperation and aggression. Meerkats are showing us that one may not be possible without the other. In a study appearing this week in the journal Nature Communications, a team of ...