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Did you know?

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

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Excessive alcohol use costs the country approximately $235 billion every year.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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There are more sensory neurons in the tongue than in any other part of the body.

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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

An analogy for how cardiac output, resistance, and blood pressure are related. An analogy for how cardiac output, resistance, and blood pressure are related.
Advantages and disadvantages of select temperature measurement sites Advantages and disadvantages of select temperature measurement sites
Some playgrounds near streets with heavy traffic may still have high levels of lead from gasoline ... Some playgrounds near streets with heavy traffic may still have high levels of lead from gasoline ...
Marx's Model of Historical Change Marx's Model of Historical Change
The output on this alternator is printed on a label. The output on this alternator is printed on a label.
The roots of climate change The roots of climate change
Video: Magnetic resonance imaging (MRI)

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