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Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Inferior orbital fissure Inferior orbital fissure
Skull Inferior View Labeled Skull Inferior View Labeled
As China has embraced its version of capitalism, wealth has grown, as has consumption. Luxury goods ... As China has embraced its version of capitalism, wealth has grown, as has consumption. Luxury goods ...
Horizontal stroking to thigh from superior to inferior. Lift tissues as hands cross over top of ... Horizontal stroking to thigh from superior to inferior. Lift tissues as hands cross over top of ...
Draw an Edgeworth box for two consumers over two goods Draw an Edgeworth box for two consumers over two goods
Video: Contraction and Relaxation Animation

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