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There are 60,000 miles of blood vessels in every adult human.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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Your heart beats over 36 million times a year.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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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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