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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.