In 1864, the first barbiturate (barbituric acid) was synthesized.
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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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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
Example of variance documentation
How to manually find the mean, variance, and standard deviation for a set of numbers
