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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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Excessive alcohol use costs the country approximately $235 billion every year.
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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.