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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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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

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Blood is approximately twice as thick as water because of the cells and other components found in it.

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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Video: HDL (high density lipoprotein)

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