In a T-rrible slump? As the primary male sex hormone, testosterone is essential for maintaining libido, erectile function, ...

You’ve probably heard rumors that testosterone makes men gain weight. The truth? It’s usually the opposite. Healthy testosterone levels actually help men maintain lean muscle, manage fat, and minimize ...

The eminent Stanford neurobiologist and science writer Robert Sapolsky has a 1998 collection of his highly entertaining essays on science and society called The Trouble with Testosterone. In the title ...