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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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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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Everyone has one nostril that is larger than the other.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.