Testosterone replacement therapy before total knee arthroplasty was linked to higher risks for systemic and periprosthetic complications.

Researchers at the University of Oulu have identified a previously unknown mechanism in humans that may explain why certain medicines and environmental chemicals disrupt the balance of sex hormones.

“Your drive for intimacy will fall off a cliff after 50.” It is one of the most persistent assumptions about aging, and research keeps dismantling it. … ...

This article was reviewed by Felix Gussone, MD. Testosterone does more than drive puberty. It influences drive, mood, motivation, and aspects of overall energy. Produced mainly in the testes, this ...

A sticky black resinous material sourced from the Himalayas promises muscle-stacking, energy-stoking, health-enhancing benefits. The truth is even wilder.

A massive new analysis of over 200,000 people reveals that the relative lengths of your index and ring fingers are linked to your sexual orientation, pointing to the powerful role of prenatal hormones ...

In the midst of a testosterone replacement surge among younger men, a 62-year-old exercise fanatic shares his thoughts ...

New research debunks the old myth that masturbation or orgasm reduces athletic performance or testosterone levels.

Testosterone replacement therapy was associated with increased risk for postoperative complications following total knee arthroplasty.

There's finally an answer for why your man never admits when he's wrong! According to science, testosterone is to blame for his stubborn attitude.

Creatine supplements boost muscle energy, and clinical evidence shows no direct link between creatine use, dihydrotestosterone levels, or hair loss.