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Did you know?

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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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Gossip and ridicule increase the status insecurity of this time of life. Gossip and ridicule increase the status insecurity of this time of life.
The work of geneticists is valuable because genes play a role in virtually every aspect of ... The work of geneticists is valuable because genes play a role in virtually every aspect of ...
The Head Start program was designed to increase the school readiness of low-income children. The Head Start program was designed to increase the school readiness of low-income children.
Mean scores for Erikson’s stage V (Identity) for two cohorts. Scores for both cohorts increase ... Mean scores for Erikson’s stage V (Identity) for two cohorts. Scores for both cohorts increase ...
Ocean acidity Ocean acidity
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Video: Ultrasound of a Fetus (Sonogram)

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