Topical testosterone most commonly causes skin problems like itching or rash. In those with female anatomy, specifically, it can cause unwanted hair growth, acne, or birth defects in pregnant people.

If you’re taking finasteride — or the brand name versions Propecia or Proscar — you’re probably checking your hairline for changes. But there might be something else you’re worried about changing: ...

Here’s when and why experts think testosterone should be prescribed to middle-aged women, and how it affects their lives. By Susan Dominus Testosterone use has recently exploded among middle-aged ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Ryan Knutson: Like a lot of men, my colleague Rolfe Winkler and I get bombarded ...

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 ...

Chances are, you’ve heard the term “steroid hormones” in many contexts, with little explanation as to what it means. Between a biological category of hormones, performance-enhancing drugs, and potent ...

Working out regularly has a profound effect on all aspects of your health, including your heart and mental health. Exercise may also play a role in your testosterone levels — but exactly how it does ...

As celebrity endorsements go, it’s perhaps slightly unexpected. In a one-minute video clip, former boyband star Duncan James speaks earnestly to the camera. ‘It all started about four years ago,’ he ...