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Did you know?
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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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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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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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.