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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Everyone has one nostril that is larger than the other.
There are more bacteria in your mouth than there are people in the world.
People about to have surgery must tell their health care providers about all supplements they take.
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