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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.
The average adult has about 21 square feet of skin.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
The average office desk has 400 times more bacteria on it than a toilet.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.