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Did you know?
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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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The familiar sounds of your heart are made by the heart's valves as they open and close.