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There are more sensory neurons in the tongue than in any other part of the body.

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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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