A researcher who describes autism as a condition of the “extreme male brain” says fetuses exposed in the womb to high levels of the male hormone testosterone are more likely than others to develop ...

From social media influencers to telehealth clinics, men are being told testosterone is the answer to all their problems. Doctors say it’s a dangerous lie.

Testosterone is the quintessential male hormone (androgen), and it’s a busy one, helping to regulate intimate function, muscle mass, red blood cell count, mood, and more. But not all testosterone in ...

What are normal testosterone levels by age? An older photographer mentors a younger one. Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical ...

Masturbation does not typically pose a threat to any other aspects of a person’s physical health. In this article, we discuss the possible short-term and long-term effects of masturbation on ...