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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.