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Did you know?
The average adult has about 21 square feet of skin.
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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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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.