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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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There are more sensory neurons in the tongue than in any other part of the body.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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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.