Rottweilers with lifelong hormone balance lived longer and faced less danger from frailty, showing how hormones shape late-life resilience.

The younger a dog is when it is spayed or neutered, the more likely it is to develop negative health conditions later in life ...

This article was reviewed by Felix Gussone, MD. How Long Does Enclomiphene Stay in Your System? Testosterone plays a major ...

Melbourne researchers have discovered gender-affirming hormone therapy can alter body proteins to match a person's gender ...

Similar to monthly hormonal cycles that many cisgender women experience, cis men also experience hormone cycling with testosterone, a masculinizing sex hormone. Rather than monthly cycles, though, ...

Scientists have discovered a new way to boost muscle strength without the dangerous side effects of traditional androgens. A powerful male hormone called 5α-DHT normally drives bone density and muscle ...

CHARLOTTE, N.C., Sept. 17, 2025 /PRNewswire/ -- Dr. Peter Fotinos, Chief Medical Officer at Excel Medical, parent company of Male Excel and Fem Excel, the first nationwide telemedicine hormone ...

A small but rigorous new study found that eating ultraprocessed foods caused otherwise healthy men to quickly gain body fat and led to reductions in their sex hormones. The men also seemed to have ...

Rachel Feltman: For Scientific American’s Science Quickly, I’m Rachel Feltman. When it comes to birth control, men have exactly two reliable options: condoms or a vasectomy. That’s it. For decades ...

A hormone-free pill, called YCT-529, that temporarily stops sperm production by blocking a vitamin A metabolite has just concluded its first safety trial in humans, getting a step closer to increasing ...