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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.
Excessive alcohol use costs the country approximately $235 billion every year.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.