Building muscle fast with testosterone or steroids may come at a cost. Doctor explains how these hormones can affect sperm ...

Ethan Benda is used to the suspicions. Given his age (41) and his condition (jacked), he understands why people who don’t know him well automatically assume steroid use. “I looked better at 40 than I ...

Eighteen-year-old Mark scrolls Instagram late at night, watching videos of fitness influencers showing off muscle gains and lifting the equivalent of a baby elephant off the gym floor. Spurred on by ...

Medically reviewed by Patricia Mikula, PharmD Creatine has become a staple supplement for people who want to improve exercise performance and recovery. Still, some online chatter claims that creatine ...

Performance enhancing or doping substances such as anabolic steroids and erythropoietin, a hormone that enhances the production of red blood cells and increases oxygen consumption in the body, are no ...

In a surprising finding, weekly doses of glucocorticoid steroids, such as prednisone, help speed recovery in muscle injuries, reports a new study. The weekly steroids also repaired muscles damaged by ...

Illicit steroids have moved beyond the headlines of the sports page. Olympic medalist Marion Jones drew jail time for lying about her familiarity with the performance-enhancing drugs, and televised ...

It’s called the “mass monster.” The anabolic steroid trenbolone—as are other performance enhancers— is increasingly going mainstream thanks to gym-bros swapping drug recommendations between reps and ...

A trial of 1,152 IVF patients aged 35 to 42 found that a biopsy-free embryo test did not raise ongoing pregnancy rates. What patients should know. New CDC data show that 66% of teens ate fruit on a ...

Three new studies strongly support using inexpensive and widely available drugs to treat people who are seriously ill with COVID-19. The drugs are steroids, and the research published Wednesday ...