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Did you know?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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Medication errors are three times higher among children and infants than with adults.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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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.