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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.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.