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There are more nerve cells in one human brain than there are stars in the Milky Way.
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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.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.