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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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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
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Vaccines prevent between 2.5 and 4 million deaths every year.