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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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The longest a person has survived after a heart transplant is 24 years.
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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.