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Did you know?

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

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

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Burkholder and colleagues demonstrated that some strains of Pfiesteria shumwayae are toxic to fish a Burkholder and colleagues demonstrated that some strains of Pfiesteria shumwayae are toxic to fish a
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Section of a normal brain (left) and an HD brain (right). The HD brain shows extensive damage to the Section of a normal brain (left) and an HD brain (right). The HD brain shows extensive damage to the
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Genetic Drift in Large and Small Populations Genetic Drift in Large and Small Populations
Video: Blood Flow Through the Kidneys

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