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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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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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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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