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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?
About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.