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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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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.