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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.