To many people around the world, eating bugs is delicious, not gross. Now research shows there may also be health benefits to eating some insects, like crickets (left).

Some dogs in southern China carry flu viruses that came from pigs. The viruses probably spread most easily where animals are crowded, such as shelters, farms and markets.

You may not notice, but your guts and brain are in constant communication. And from what scientists have been learning from rodent studies, those chats between gut microbes and the brain can have a whole range of important, hidden impacts.

Each year, bouts of norovirus — a stomach bug — cause misery in 19 to 21 million Americans. Scientists at last are homing in on how this nasty virus does its work.