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Did you know?
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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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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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.