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

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

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

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