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Did you know?
The longest a person has survived after a heart transplant is 24 years.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
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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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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.