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.