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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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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.