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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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The average adult has about 21 square feet of skin.
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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.