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Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.