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Did you know?
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.