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Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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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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There are 20 feet of blood vessels in each square inch of human skin.

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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.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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Video: Major Elements in Biological Molecules: Lipids

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