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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.