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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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en
