Here's the article. I think most people probably understand this stuff anyways. Still, it doesn't explain why Sonnen and Marquardt were going through HRT.
Causes of Low Testosterone|
Testosterone is one of the most important hormones in the human body and plays an especially important role in male health as its the main sex hormone. Low levels of testosterone can be caused by a variety of reasons like hypogonadism and zinc deficiency. Let us understand the