There are more sensory neurons in the tongue than in any other part of the body.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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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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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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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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