A substance banned at the highest levels of competition is now raising concerns about teenage student-athletes.

Add Yahoo as a preferred source to see more of our stories on Google. Human growth hormone (HGH) is a hormone that’s essential to our development. Most people produce enough HGH throughout their ...

From heart drugs to hair-loss treatments, here’s a look at 10 common medications linked to an increased risk of gynecomastia.

From $100,000-a-year testosterone therapy programmes to the rise of supplements like NAD+, hormonal health has become the new frontier in wellness and beauty. And it’s quickly being adopted by the ...

A new study suggests that a hormone therapy harvested from human corpses may be linked to a rare, controversial form of ...