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On average, the stomach produces 2 L of hydrochloric acid per day.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.
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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.