We also know that within normal ranges, testosterone levels are not strongly predictive of aggression. In the amygdala, a ...

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

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

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

A recent episode of the hit Hulu comedy "Only Murders in the Building" highlights a hormone therapy that many men request as they get older. Steve Martin’s character, Charles-Haden Savage — a ...

As the primary male hormone, or androgen, testosterone regulates various aspects of your growth and development as a man. Testosterone plays a central role in shaping both your physical ...

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 ...

Testosterone is the primary sex hormone in males but also has important functions in females. Natural testosterone supplements and boosters include vitamin D, fenugreek, or ashwagandha. A person with ...