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Vaccines prevent between 2.5 and 4 million deaths every year.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
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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.