What Is Low Testosterone (Testosterone Deficiency)? Testosterone is the primary androgen — or male hormone — in your body. Low testosterone affects up to 39 percent of adult men in the US over the age ...

Low testosterone isn’t just an “older men” issue. In clinics and surveys, more men in their 20s and 30s report symptoms ...

Rob, 42, is a fitness guy. He loves working out, spends his spare time in the jujitsu gym and eats a high-protein diet heavy on avocado oil. He cares about his health and wants to optimize it, and a ...

It is not just women who face the harrowing hormonal effects of “the change.” Andropause — commonly called “male menopause” or “manopause” — refers to age-related declines in testosterone levels. And ...

There are many misconceptions when it comes to low testosterone, and that can cause confusion for men. So, how can they know whether they really have it or if they’re dealing with something else?

Lacking a common protein may affect how muscles respond to testosterone, potentially affecting athletic performance and ...

Tap into the science that’s redefining what testosterone really does for athletes. This research breaks down why internal conviction may matter more than social approval. Learn how to play, train, and ...