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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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There are more nerve cells in one human brain than there are stars in the Milky Way.
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The average office desk has 400 times more bacteria on it than a toilet.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.