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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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The average office desk has 400 times more bacteria on it than a toilet.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.