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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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The familiar sounds of your heart are made by the heart's valves as they open and close.

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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

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The FDA recognizes 118 routes of administration.

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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.

Sequential decline of whale catches in the Antarctic shows the strong effect of human predators. Sequential decline of whale catches in the Antarctic shows the strong effect of human predators.
A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb A number of tree species can be interconnected by mycorrhizal fungi in the forests of British Columb
Human Population Blasts Off Human Population Blasts Off
The base of the human cranium is more flexed than the base of the chimpanzee cranium. The base of the human cranium is more flexed than the base of the chimpanzee cranium.
Human impacts and the built environment Human impacts and the built environment
Some human traits controlled by a single gene Some human traits controlled by a single gene
Video: Requirements for nervous signals

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