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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.

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The longest a person has survived after a heart transplant is 24 years.

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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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