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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
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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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Your heart beats over 36 million times a year.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Approximately 25% of all reported medication errors result from some kind of name confusion.