Bacteria live on our eyeballs – and understanding their role could help treat common eye diseases

You may be familiar with the idea that your gut and skin are home to a collection of microbes – fungi, bacteria and viruses – that are vital for keeping you healthy. But did you know that your eyes ...
Nature

A sharper diagnosis for ulcerative colitis

Ulcerative colitis is a type of chronic inflammatory bowel disease that causes painful ulcers and irritation in the large intestine. In North America alone, it is estimated to affect more than 750,000 ...