The discovery of a gut-to-brain regulation pathway in flies calls for additional consideration on how certain medications, especially GLP-1 agonists, can be used to treat obesity and diabetes in ...

Finally, researchers are closing in on an oral male contraceptive pill that works without hormones, offers full reversibility and – most strikingly – has caused zero side effects. The pill, called YCT ...

The placenta and the hormones it produces may have played a crucial role in the evolution of the human brain, while also leading to the behavioral traits that have made human societies able to thrive ...

Rachel Feltman: For Scientific American’s Science Quickly, I’m Rachel Feltman. When it comes to birth control, men have exactly two reliable options: condoms or a vasectomy. That’s it. For decades ...

Ghrelin is a hormone your stomach makes that signals your body when you're hungry. You might think of it as an "on switch" for appetite. Your small intestine, pancreas, and brain also release small ...

Growing evidence that chemicals in the environment can interfere with animals' hormone systems -- including the discovery that male Potomac River fish are growing eggs -- has focused the attention of ...