Order a sushi platter in the U.S. and your plate will likely include tuna from the South Pacific, crab from the North Atlantic, and farm-raised shrimp from Asia. Researchers have long known that exposure to the neurotoxin methylmercury (MeHg) comes almost exclusively from eating seafood. But the geographic origins of …

Scientists at Imperial College London have become the first in the world to test how pathogens interact with artificial human organs. Artificial human organs, or organ-on-chip technologies, simulate a whole organ’s cell make up and physiology. They act as alternatives to animal models in drug safety testing, but until now …

People with anxiety and depression might feel a little better after they get mild electric shock therapy, but it’s unclear how much it will help or whether this treatment might ease other conditions, researchers say. The therapy, known as cranial electrical stimulation, delivers a current similar to that of a …