KYZATREX ® is a controlled substance (CIII) because it contains testosterone. It is not known if KYZATREX ® is safe or effective in males younger than 18 years old. Improper use may affect bone growth ...

Testosterone is a naturally occurring steroid hormone. Despite its status as a steroid, prescription testosterone replacement ...

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

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 ...

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

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

Though testosterone often gets a bad rap because aggressive or misbehaving men are sometimes labeled as "testosterone fueled," the hormone actually isn't unique to one type of person or gender and ...

Feeling sluggish, uninterested in the gym, or more cuddly around the midsection? Before you blame it all on low testosterone and rush to the supplement aisle, join the Who Cars Guys and Dr. John Smith ...

That unexplained exhaustion or sudden change in your body might not be just stress or aging. Medical experts are seeing more men experiencing testosterone deficiency, often without realizing what’s ...

Historically, testosterone has been associated with masculinity. Someone having high levels of testosterone was shorthand for perceived higher levels of aggression, strength, and libido. However, ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Ryan Knutson: Like a lot of men, my colleague Rolfe Winkler and I get bombarded ...