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Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

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The longest a person has survived after a heart transplant is 24 years.

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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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Anti-GM protesters attacking a field of genetically-modified maize in southwestern France Anti-GM protesters attacking a field of genetically-modified maize in southwestern France
Micrograph of toothbrush bristles scrubbing plaque on a tooth surface. Micrograph of toothbrush bristles scrubbing plaque on a tooth surface.
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Video: Vascular tissues in a corn stem and a buttercup root

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