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There are more bacteria in your mouth than there are people in the world.

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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

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Cyanide works by making the human body unable to use oxygen.

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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

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