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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Increasing Costs of Natural Disasters Increasing Costs of Natural Disasters
Fraternal twins share about 50 percent of their segregating genes. Fraternal twins share about 50 percent of their segregating genes.
A spark plug thread chaser is a low-cost tool that hopefully will not be used often, but is ... A spark plug thread chaser is a low-cost tool that hopefully will not be used often, but is ...
Percent of oxygen in the atmosphere versus altitude. Percent of oxygen in the atmosphere versus altitude.
question in cost accounting question in cost accounting
Rapidly decreasing sequence costs have enabled the rapid expansion Rapidly decreasing sequence costs have enabled the rapid expansion
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