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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
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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.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.