Testosterone regulates many normal functions of a healthy body, from managing bone density and muscle mass to improving mood and energy. While it's easy to think of testosterone as a "masculine" hormone, men and women need testosterone. And if your testosterone levels are low, many of your body's systems suffer. How can you tell if you need testosterone replacement therapy (TRT)? Read our new blog to learn all about the testosterone replacement process, and see whether TRT can treat your symptoms.