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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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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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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.