Q. I would like to know more about the use of testosterone replacement in men. My understanding is that a recent large-scale study showed that men using testosterone replacement therapy did not have ...

Here’s when and why experts think testosterone should be prescribed to middle-aged women, and how it affects their lives. By Susan Dominus Testosterone use has recently exploded among middle-aged ...

For more than 80 years, men have been told that testosterone fuels prostate cancer. But a more nuanced picture has emerged ...