By Sean Dowling, Buzz60
Experts say you shouldn't wear your shoes indoors because they can be full of dangerous bacteria, according to University of Houston researchers.
It's simple logic. Walking outside drags in germs and bugs that can spread on carpets and floors.
SEE ALSO: A cancer-detecting gum could be coming soon
Most people don't need to worry about getting sick from the bacteria -- but older people and children are most at risk, as well as people with weak immune systems.
RELATED: 6 foods that double as cleaning products
Researchers studied a specific bacterium that causes painful stomach cramps and tested samples gathered around town for two years.
Shoe soles in homes were about three times more likely to test positive than bathroom and kitchen surfaces and that's just one bacterium.
Wiping your feet doesn't help because you're only wiping up what others have left behind. The best way to keep that bacteria out of your home is to leave your shoes at the door.