The Contagious Equine Metritis (CEM) Table Topic attracted an audience of about 60 veterinarians at the 2009 American Association of Equine Practitioners (AAEP) Convention in Las Vegas, Nev. The ...

Contagious yawning is a widespread phenomenon in which the perception of another individual’s yawn triggers a yawn in the observer. Although yawning itself serves thermoregulatory and arousal ...

The average adult yawns about 20 times a day. But why? Surely we can’t all be that tired. The truth is, the science behind yawning is more complex than just a few hours too little sleep. Even more ...

Allergic conjunctivitis is not contagious, but other types of conjunctivitis, such as viral or bacterial, are. People can take steps to prevent transmission of the contagious types. These steps ...

Sara Moniuszko is a health and lifestyle reporter at CBSNews.com. Previously, she wrote for USA Today, where she was selected to help launch the newspaper's wellness vertical. She now covers breaking ...

Contagious yawning refers to the tendency of individuals to yawn after seeing, hearing, or even thinking about someone else yawning. About 40% to 60% of people exhibit contagious yawning when exposed ...

Many infectious diseases are caused by viruses and bacteria. Bacteria are microorganisms that are made up of a single cell. They can be found in a wide variety of environments. Most bacteria are ...