If you have trouble reading this message, view it in a browser.

Welcome to “Testosterone HQ,” a special-edition Men’s Health newsletter that covers the ins and outs of this all-important but very complicated hormone. There’s excitement about it, there’s stigma, there are health benefits and risks, and there is so much to know about the testosterone we have. These featured articles highlight everything you need to know about what it is, what takes it up, what drives it down, and why it matters so much to your health. 

How Much Do You Really Know About Testosterone?

Bulging muscles, a voracious sex drive, and super strength are probably what come to mind when you think about testosterone. And it does play a role in those things. But testosterone does a lot more for the body, and not everyone knows a lot about what testosterone really is. We’re here to change that.

8 Sneaky Signs Your Testosterone Is Too Low

Your penis isn’t the only thing at risk.

How Testosterone Affects the Size of Your Penis

This is how this famous hormone really affects your stuff.

Three Guys Under 50 Shared What It's Really Like to Take Testosterone

Taking T is on the rise among younger men. Here's what it feels like.

What Free Testosterone Is, and Why It Matters

It's only a small part of your total testosterone, but it's important, too.

Is a Testosterone Test Important?

Guys’ levels of testosterone naturally drop about 1 to 3 percent every year after 40, which can cause symptoms including low libido, erectile dysfunction, unexplained anemia, insomnia, depression, and a general loss of vigor, or mental and physical energy.

It’s important to know if your T levels are clinically low, which can be determined through a test. Click in for everything you need to know on what the test entails, and how to tell if taking one is absolutely necessary.