Your brain begins as a single cell. When all is said and done, it will house an incredibly complex and powerful network of some 170 billion cells. How does it organize itself along the way? Cold ...

Fecal microbiota transplants may enhance patients’ response to immunotherapy, but experts caution that the latest data remain proof-of-concept and far from practice-changing.

Across the U.S., hundreds of sites on land or in lakes and rivers are heavily contaminated with hazardous waste produced by ...