Curious about the science behind double-dipping at parties? This video examines a famous Clemson University study inspired by Seinfeld, revealing how much bacteria is transferred when you dip a chip ...

The spread of the H1N1 flu, the "swine flu," is thought to spread from person to person through coughing or sneezing. Health officials encourage you to wash your hands often with soap and warm water.

As flowers bloom and temperatures climb, many are eager to get back outside. But while the Sun may be shining, there is a dark side that can make the great outdoors not so great. Gangs of germs are ...