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 ...

This article was reviewed by Felix Gussone, MD. Testosterone does more than drive puberty. It influences drive, mood, motivation, and aspects of overall energy. Produced mainly in the testes, this ...

The aim of treating late-onset hypogonadism (LOH) with transplanted testicular cells may have taken a step closer to reality with the successful generation of hormone-producing cells using a simple ...

Testosterone plays a central role in shaping both your physical characteristics and reproductive functions, like your growth, sperm production, muscle mass, and deeper voice. It also influences your ...