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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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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, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Your heart beats over 36 million times a year.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.