Here's some scary heath news: even if you don't have symptoms, harmful and potentially fatal bacteria can be lurking in your guts. One type of bacteria in particularly seems to thrive -- Clostridium, which can cause a dangerous type of diarrhea. What's even more frightening is that in a study, the bacteria was shown to be lurking all over hospitals and healthcare facilites.

But there's a surefire way to prevent transmission of bacteria -- cleanliness. If healthcare providers wear gloves, wash their hands and adequately sterilize their environments, there would be no problem. But since there's no way to ensure that they're doing their part, do your by washing your hands.