Genetics play a role in low testosterone for some men, but underlying causes vary widely. Many genes influence testosterone ...

Testosterone is a hormone that supports muscle mass, bone strength, mood, cardiovascular health, and intimate health. Low testosterone can contribute to symptoms like fatigue, … ...

For many guys, having low energy isn’t simply a result of a rough night of sleep or a demanding workweek—it might be low testosterone levels at play. Testosterone is an androgen (or male hormone) that ...

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 ...

Certain health conditions can make it difficult for some men to have normal levels of testosterone. Low testosterone levels, also known as hypogonadism, can affect a person’s life, can cause different ...

Low testosterone can result from a variety of underlying factors. “Common causes include the natural aging process, obesity, chronic illness, genetic disorders and the use of certain medications,” ...

For more than 80 years, men have been told that testosterone fuels prostate cancer. But a more nuanced picture has emerged ...

Q. I would like to know more about the use of testosterone replacement in men. My understanding is that a recent large-scale study showed that men using testosterone replacement therapy did not have ...

Many women are becoming more aware of the perks of maintaining their hormone levels as they age. Maybe that’s why testosterone is no longer the third wheel—after estrogen and progesterone—when it ...

What used to be a niche treatment for men with legitimate medical conditions has morphed into "youth and vigor" as a ...

Testosterone plays a crucial role in men’s health, influencing everything from energy levels and mood to muscle mass, bone density, and sexual function. Understanding the causes, symptoms, and ...