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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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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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The human body produces and destroys 15 million blood cells every second.