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.

Scientists have taken a look at the belly button and found it to be a surprisingly unique microbiome that varies quite a bit from person to person.

Have you ever wondered why most disinfectants indicate they kill 99.9% or 99.99% of germs, but never promise to wipe out all of them? Perhaps the thought has crossed your mind mid-way through cleaning ...

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