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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.