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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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There are 60,000 miles of blood vessels in every adult human.
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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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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
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Vaccines prevent between 2.5 and 4 million deaths every year.