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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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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.
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The average adult has about 21 square feet of skin.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.