Two-time Olympic swimming champion Conor Dwyer has announced his retirement, after receiving a 20-month ban for having testosterone pellets surgically inserted into his body. Dwyer had failed three ...

A growing number of women are taking testosterone. Mom of four Alixa Winn started injecting testosterone when she was 35. She tells Inside Edition that she got a boost in energy within months of ...

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

Although popular discussion of testosterone’s influence on males often centers on aggression and antisocial behavior, contemporary theorists have proposed that it instead enhances behaviors involved ...