More accurately called gastroenteritis, contagious stomach illness is most often caused by two viruses, rotavirus or norovirus.
Mythbusters: Turkey doesn’t really make you sleepy
Most of us blame our drowsiness on the delicious turkey at the center of the holiday smorgasbord. But is there any truth to this poultry’s nap-inducing reputation?
Bread dread: Do you really need to avoid gluten?
Is gluten really a dietary villain?