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Medication errors are more common among seriously ill patients than with those with minor conditions.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Anatomy of the Lotka-Volterra equations for predator-prey population growth. Anatomy of the Lotka-Volterra equations for predator-prey population growth.
Trap set to monitor the wild population in the Dryandra Woodland Trap set to monitor the wild population in the Dryandra Woodland
An intra-aortic balloon pump increases circulation to the coronary arteries and decreases the worklo An intra-aortic balloon pump increases circulation to the coronary arteries and decreases the worklo
The Inverted Income Pyramid: The Proportion of Income Received by Each Fifth of the U.S. Population The Inverted Income Pyramid: The Proportion of Income Received by Each Fifth of the U.S. Population
World population density World population density
The Great Spike in World Population Growth The Great Spike in World Population Growth
Video: Four Giant Convection Cells oF Earth

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