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Did you know?
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
Did you know?
There are more sensory neurons in the tongue than in any other part of the body.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Everyone has one nostril that is larger than the other.