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The human body produces and destroys 15 million blood cells every second.
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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.