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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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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Rusty-tipped Page (Siproeta epaphus), Butterfly World (Florida) Rusty-tipped Page (Siproeta epaphus), Butterfly World (Florida)
The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own The Kingsley plantation, on Fort George Island in Jacksonville, Florida. Zephaniah Kingsley, the own
Index card tickler file. Index card tickler file.
Sociologists study the social factors that underlie human behavior, the experiences that mold us, ... Sociologists study the social factors that underlie human behavior, the experiences that mold us, ...
Rub the ears between your thumbs and index fingers. Follow the curves to rub the entire ear, ... Rub the ears between your thumbs and index fingers. Follow the curves to rub the entire ear, ...
Video: Types of Shock (Part 2 of 2)

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