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Did you know?
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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