It may feel like you are surrounded by sniffles and coughs, but flu season activity is still low in many parts of the U.S. New government data posted Friday shows that as of last week, flu activity was high in four states — Colorado, Louisiana, New Jersey and New York — and minimal or low in most others.

Dr. Uma Naidoo, a nutritional psychiatrist, says the sugar found in many comfort foods hits our brains in the same pleasure center as street drugs do. But that's not the only reason we find comfort in such treasured dishes; there is also warm-and-fuzzy nostalgia.

Horses can detect fear in humans by smell, becoming more likely to startle and more wary of people who are scared, a new study has found.