Harmonized reference normal ranges for testosterone levels in healthy, nonobese men have been generated in a landmark study that should aid in accurately diagnosing hypogonadism, say US investigators.

Total testosterone measures the full amount of the hormone in your blood, while free testosterone represents the small, ...

Testosterone is arguably one of the most essential hormones for supporting men’s health. It plays a role in supporting intimate, bone, muscle, and mental health. Testosterone levels that are higher or ...

Adult males typically have between 265 and 923 nanograms per deciliter of testosterone (ng/dL) in their blood, while adult females have far less. Typical levels vary depending on age, sex, and health.

Washington, DC--A large study of more than 9,000 men has established harmonized reference ranges for total testosterone in men that when applied to assays that have been appropriately calibrated will ...

Testosterone levels are at their highest during adolescence and early adulthood. Testosterone levels may start to decline after age 30 years in males and between ages 45 and 55 years in females.

A large study of more than 9,000 men has established harmonized reference ranges for total testosterone in men that when applied to assays that have been appropriately calibrated will effectively ...

Testosterone is the male sex hormone. As men get older, their bodies produce less of it. Starting in middle age, it often drops below levels that doctors consider normal. Low testosterone-- also known ...

What are normal testosterone levels by age? An older photographer mentors a younger one. Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical ...