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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.