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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.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Did you know?
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.