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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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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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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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