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Did you know?
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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The familiar sounds of your heart are made by the heart's valves as they open and close.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
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There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
The average adult has about 21 square feet of skin.