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

The evolution of a validated clinical syndrome from an initial recognition of a cluster of symptoms to the clear delineation of a defining set of biochemical, biobehavioral, and physical findings is a ...

Testosterone deficiency, commonly referred to as hypogonadism, is a medical condition that can profoundly affect a man’s life, both physically and emotionally. Testosterone, a vital hormone in the ...

Testosterone deficiency can impose a profound adverse effect on the sexual health of men and produce other symptoms that diminish quality of life. All symptomatic men with a testosterone level less ...

Testosterone testing and treatment have increased significantly over the past 2 decades, yet clinical practices remain inconsistent. 1,2 Despite rising awareness and prescription trends, up to 25% of ...

Testosterone is an important hormone in males, contributing to many aspects of development, which is why low testosterone can be so noticeable. During your teenage years, testosterone initiated your ...

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 of 45, and becomes increasingly prevalent as men ...

As males age they experience a natural and gradual decline in testosterone, and research has established a relationship between low levels of the hormone and increased incidence of type 2 diabetes. In ...

Most people, especially women, understand what menopause is. But is there such a thing for men? "The general feeling was that men don't go through a change of life that's hormonally based, that only ...