Testosterone. Even the word alone sounds manly. For men, testosterone is important for drive, fertility, heart health, bone health, energy and mood — to name just a few benefits. When you have low ...

Why insurance requires an 8 a.m. testosterone test and what causes hand numbness and locking fingers.

This article was reviewed by Felix Gussone, MD. Key Takeaways: In the U.S., testosterone is a controlled substance, so you’ll need a prescription to acquire it. While you take it, your provider will ...