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The human body produces and destroys 15 million blood cells every second.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Excessive alcohol use costs the country approximately $235 billion every year.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.