US President Donald Trump signed an executive order to ban transgender women from competing in women's sports, directing authorities to withdraw funding from schools that fail to comply with the order ...

Endocrinological research has estimated that as men age, natural levels of the male sex hormone testosterone can decline 50% ...

Furthermore, inactivation of key androgenic enzymes, such as 3β-hydroxysteroid dehydrogenase and 17β-hydroxysteroid dehydrogenase, together with decreased testosterone synthesis suggest a potential ...

Board-certified physician Paul Saladino used to be one of the most well-known proponents of the carnivore diet -- until he ...

Puberty blockers suppress the release of estrogen and testosterone, which are primarily responsible for the physical changes ...

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New study published in “Science” shows that a single gene determines the mating behavior of male ruffs In the animal kingdom, testosterone is a necessary hormone for reproduction, and high levels of ...

We normally associate high testosterone levels with male dominance and aggression. Among ruffs – a shore bird that breeds ...

We normally associate high testosterone levels with male dominance and aggression. Among ruffs – a shore bird that breeds across Europe and Asia – some males suffer from too much of it. Together with ...

The first series was one of the streamer’s most watched shows ever – but the second outing for Gabriel Basso’s agent is tired and silly ...

A single gene that regulates testosterone levels in a 'crazy' species of shore bird controls the development of three wildly different types of males, a new study has found. Ruffs have long ...