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Did you know?
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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There are 20 feet of blood vessels in each square inch of human skin.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The horizontal fraction bar was introduced by the Arabs.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.