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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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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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Women are 50% to 75% more likely than men to experience an adverse drug reaction.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Long-term studies of the Glanville fritillary butterfly, Melitaea cinxia, have provided exceptional Long-term studies of the Glanville fritillary butterfly, Melitaea cinxia, have provided exceptional
Acute exacerbations of asthma can require management in the emergency department. The child is place Acute exacerbations of asthma can require management in the emergency department. The child is place
Bank teller assisting with customer service. Bank teller assisting with customer service.
After checking for stored diagnostic trouble codes (DTCs), the wise technician checks service ... After checking for stored diagnostic trouble codes (DTCs), the wise technician checks service ...
A random sample of 87 airline pilots recruited by an airline service had an average yearly ... A random sample of 87 airline pilots recruited by an airline service had an average yearly ...
Exceptional progeny observed by Calvin Bridges Exceptional progeny observed by Calvin Bridges
Video: Sperm Formation

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